IOQM Discussion

This discussion is mainly for the Pre-Regional Mathematics Olympiad held in India. However, anyone who wants to practice good Math questions, you are welcome! Also, I'll be mentioning some great teachers, who are known for their excellent problems!

Edit : IOQM instead of PRMO

The rules are:

  • Post problems related to PRMO.

  • Don't post repeated problems(I mean if someone has posted it already, don't post again).

  • You may check out the level of problems from Zakir Husain Sir's A Pre-RMO question (whole series!).

  • Some sample questions can also be found here.

  • Past year problems are also welcome.

  • Don't post comments not related to any problem.

  • Don't write the answers in the comments.

  • If you are not posting a problem yourself, and find a good problem in the Community(old or new), please post it here.

  • If you learnt any new concept, do share it with us!

  • Let's together do Math!

Note by Vinayak Srivastava
4 months ago

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1 vote

  Easy Math Editor

This discussion board is a place to discuss our Daily Challenges and the math and science related to those challenges. Explanations are more than just a solution — they should explain the steps and thinking strategies that you used to obtain the solution. Comments should further the discussion of math and science.

When posting on Brilliant:

  • Use the emojis to react to an explanation, whether you're congratulating a job well done , or just really confused .
  • Ask specific questions about the challenge or the steps in somebody's explanation. Well-posed questions can add a lot to the discussion, but posting "I don't understand!" doesn't help anyone.
  • Try to contribute something new to the discussion, whether it is an extension, generalization or other idea related to the challenge.
  • Stay on topic — we're all here to learn more about math and science, not to hear about your favorite get-rich-quick scheme or current world events.

MarkdownAppears as
*italics* or _italics_ italics
**bold** or __bold__ bold

- bulleted
- list

  • bulleted
  • list

1. numbered
2. list

  1. numbered
  2. list
Note: you must add a full line of space before and after lists for them to show up correctly
paragraph 1

paragraph 2

paragraph 1

paragraph 2

[example link](https://brilliant.org)example link
> This is a quote
This is a quote
    # I indented these lines
    # 4 spaces, and now they show
    # up as a code block.

    print "hello world"
# I indented these lines
# 4 spaces, and now they show
# up as a code block.

print "hello world"
MathAppears as
Remember to wrap math in \( ... \) or \[ ... \] to ensure proper formatting.
2 \times 3 2×3 2 \times 3
2^{34} 234 2^{34}
a_{i-1} ai1 a_{i-1}
\frac{2}{3} 23 \frac{2}{3}
\sqrt{2} 2 \sqrt{2}
\sum_{i=1}^3 i=13 \sum_{i=1}^3
\sin \theta sinθ \sin \theta
\boxed{123} 123 \boxed{123}

Comments

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Hey guys, I am considering Unsubscribing, because a/an member/s (cough Srijian cough ) post unnecessary comments, which clutter my notifications. I will look here time to time for great problems posted by you guys, and will also share good problems that I think are interesting. This is a great note with lots of awesome problems, so thanks Vinayak for creating this in the first place. Hasta la Vista!

(Edit : I just realized that this is also a kinda unnecessary comment lol)

(No offense Srijian, but what I said about is you is kinda true. I get so many notifications from you, I sometimes wish there was a feature were we could unsubscribe from a member, so that any of his/her replies, mentions and comments won't appear in my notifications, and I'm serious 'bout that, I actually considered asking Brilliant Mathematics...Just saying...don't consider this as hate peeps!)

Percy Jackson - 1 month, 2 weeks ago

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i could suggest that to brilliant through bugtest note for you

NSCS 747 - 1 month, 2 weeks ago

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Please Explain your answer...lol

Percy Jackson - 1 month, 1 week ago

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Try this problem Cardinality of Inequations!!

Aryan Sanghi - 1 month, 2 weeks ago

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Try this problem Functional Complex Trignometry!!

Aryan Sanghi - 1 month, 2 weeks ago

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Try this problem A Real Equation!!

Aryan Sanghi - 1 month, 4 weeks ago

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Try this problem Ellipse's circular tangents!!

Aryan Sanghi - 2 months, 1 week ago

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Don't use calculator

Percy Jackson - 2 months, 1 week ago

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N's the Limit

Percy Jackson - 2 months, 1 week ago

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@Percy Jackson .I am first to solve your problem...wait I'm posting the solution

SRIJAN Singh - 2 months, 1 week ago

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ok, I am also posting solution

Percy Jackson - 2 months, 1 week ago

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Yes post it Btw how did you use limit function,I don't know how to use latex.Is there any wiki that can teach me how to use latex

SRIJAN Singh - 2 months, 1 week ago

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@Srijan Singh Pall Marton's Latex Guide

Percy Jackson - 2 months, 1 week ago

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@Percy Jackson Okay

SRIJAN Singh - 2 months, 1 week ago

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@Srijan Singh PLS comment on my chatbot one

SRIJAN Singh - 2 months, 1 week ago

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Its not my problem, but its pretty good

Percy Jackson - 2 months, 1 week ago

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Nice one But I have not studied calculus yet

SRIJAN Singh - 2 months, 1 week ago

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@Vinayak Srivastava,@Percy Jackson,@Mahdi Raza,@Kriti Kamal,@Siddharth Chakravarty,@Aryan Sanghi,I wish you will like this problem

SRIJAN Singh - 2 months, 1 week ago

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Solved it, thanks for sharing @SRIJAN Singh

Percy Jackson - 2 months, 1 week ago

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Nice,Your welcome

SRIJAN Singh - 2 months, 1 week ago

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simplest problem

Kriti Kamal - 2 months, 1 week ago

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Done!

SRIJAN Singh - 2 months, 1 week ago

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Simple problem

Kriti Kamal - 2 months, 2 weeks ago

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Check out this easy limit problem: Limiting till the degree 5, @Aryan Sanghi I was talking about this.

Siddharth Chakravarty - 2 months, 2 weeks ago

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Solved it. :) @Siddharth Chakravarty

Aryan Sanghi - 2 months, 2 weeks ago

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It's easy I solved first! Check this! out

SRIJAN Singh - 2 months, 2 weeks ago

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Please post a solution if you want, and I am still learning coding so I cannot help much maybe :)

Siddharth Chakravarty - 2 months, 2 weeks ago

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@Siddharth Chakravarty Which type of language are you learning? ,I'll post the solution whenever I'll get time

SRIJAN Singh - 2 months, 2 weeks ago

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@Srijan Singh Python

Siddharth Chakravarty - 2 months, 2 weeks ago

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@Siddharth Chakravarty Nice,Me also Python btw what are you learning in that

SRIJAN Singh - 2 months, 2 weeks ago

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Try this problem Ellipse's Circumscribed perimeter!

Aryan Sanghi - 2 months, 2 weeks ago

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Hi, I think I am new to the group, I found this geometry Problem which uses the properties of circles, rectangles and even triangles(based on your method)

Pankaj Kumar - 2 months, 3 weeks ago

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Thanks! Beautiful geometry problems or even problems that have an elegant solution are always a pleasure to solve. Very few problems are being shared in this discussion/page. I expected a lot, but nevermind :(

Mahdi Raza - 2 months, 3 weeks ago

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Try this problem Ellipse's Circumscribed perimeter!. @Mahdi Raza

Aryan Sanghi - 2 months, 2 weeks ago

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@Mahdi Raza It was the least I could do! I hope that more people find and join this discussion and share some incredible problems.

Pankaj Kumar - 2 months, 3 weeks ago

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Try this problem Highly Elliptical Area!!

Aryan Sanghi - 2 months, 3 weeks ago

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I found this easy logic problem.However,you need to know the rules of cricket.

Kriti Kamal - 2 months, 3 weeks ago

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The problem becomes easy once you know the rules of Cricket, I had to google the rules of cricket for this.

Siddharth Chakravarty - 2 months, 3 weeks ago

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so you cheated, or referred after getting it wrong? @Siddharth Chakravarty

Percy Jackson - 2 months, 3 weeks ago

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@Percy Jackson Well I referred it before attempting, and then I read a whole wiki on a sport that doesn't interest me, and then got the question correct. I guess it is not cheating, as it is like knowing about a theorem to solve a problem :)

Siddharth Chakravarty - 2 months, 3 weeks ago

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@Siddharth Chakravarty I was only interested in the 'sport that doesn't interest me' part. LOL Finally someone who doesn't think cricket is a big deal. The way Mahdi and Kriti talk about cricket makes me think that you need a degree in cricket to get into MIT and both of them passed the cricket exam with full marks lol XD

Percy Jackson - 2 months, 3 weeks ago

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@Percy Jackson lol XD, if you see my bio it is written get into MIT that means I need a degree in cricket.

SRIJAN Singh - 2 months, 3 weeks ago

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@Percy Jackson Actually,I am not interested in any sports.But,if you are Indian,then it is like common knowledge.You may not interested in cricket but,when your all friends are talking about cricket whole the day.Then, it's quite reasonable that you will know all about it without even playing it :)

Kriti Kamal - 2 months, 3 weeks ago

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@Percy Jackson In India, Cricket has a huge fanbase, I mean really huge, so you could expect majority of people to love it :) I'm more into racket games like badminton and swimming.

Siddharth Chakravarty - 2 months, 3 weeks ago

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@Siddharth Chakravarty Swimming, I'ma son of Poseidon. More into that :)

Percy Jackson - 2 months, 3 weeks ago

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Extension: Answer should be 33n+333n + 3 runs for nn overs

Mahdi Raza - 2 months, 3 weeks ago

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Do you mean 33(n-1)+36 :-)

Kriti Kamal - 2 months, 3 weeks ago

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@Kriti Kamal Yes, exactly. for each of the first (n1)(n-1) overs, the batsman will take 33 runs. But in the last over he need not change the strike so he can hit all sixes which is 36 runs

Total =33(n1)+36=33n33+36=33n+3\begin{aligned} \text{Total } &= 33(n-1) + 36 \\ &= 33n - 33 + 36 \\ &= \boxed{33n + 3} \end{aligned}

Which is what I wrote above

Mahdi Raza - 2 months, 3 weeks ago

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@Mahdi Raza Ok

Kriti Kamal - 2 months, 3 weeks ago

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Oh yes, I forgot, but I once saw a debate, where it was asking if 5 runs is possible or not.

Vinayak Srivastava - 2 months, 3 weeks ago

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@Vinayak Srivastava I do think it is allowed in cricket.However,it is only possible when fielders are like me or ball is lost .:-P

Kriti Kamal - 2 months, 3 weeks ago

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@Vinayak Srivastava I don't think so. It shouldn't be allowed. "All exceptions to be avoided" should be written in the question, but I guess it is assumed in the rules of cricket


If that is allowed through (shouldn't be, but anyway), then the total would be

35(n1)+36=35n+135(n-1) + 36 = 35n + 1

Mahdi Raza - 2 months, 3 weeks ago

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@Mahdi Raza And if 5 is allowed, then even 7 should be. That is possibly why 5 is not counted as well

Mahdi Raza - 2 months, 3 weeks ago

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@Vinayak Srivastava,I have seen in your profile that cricket is one of your interests.

Kriti Kamal - 2 months, 3 weeks ago

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Yes, but I added wrong, I knew that rule.

Vinayak Srivastava - 2 months, 3 weeks ago

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Wow! I calculated wrong! I knew the answer though.

Vinayak Srivastava - 2 months, 3 weeks ago

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Try this problem Areal Parabolic Centroid

Aryan Sanghi - 2 months, 3 weeks ago

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Try this problem Triangle of Reflection

Aryan Sanghi - 2 months, 4 weeks ago

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done

SRIJAN Singh - 2 months, 4 weeks ago

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I am shown no solvers?

Aryan Sanghi - 2 months, 4 weeks ago

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@Aryan Sanghi but got wrong

SRIJAN Singh - 2 months, 4 weeks ago

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Try this problem Co-Normal Parabolic Centroid

Aryan Sanghi - 3 months, 1 week ago

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@Vinayak Srivastava.do my new problem

SRIJAN Singh - 3 months, 2 weeks ago

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Try out my new problem: Are all numbers good?

Vinayak Srivastava - 3 months, 2 weeks ago

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Try this problem by me A Unique function

Aryan Sanghi - 3 months, 3 weeks ago

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New problem @Vinayak Srivastava,@Percy Jackson.

Kriti Kamal - 3 months, 3 weeks ago

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@Vinayak Srivastava if you are online see this

SRIJAN Singh - 3 months, 3 weeks ago

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first of all @Vinayak Srivastava,@Aryan Sanghi,@Siddharth Chakravarty,@Mahdi Raza,@Percy Jackson are my best friend because they give me support THANK YOU all for supporting me .

SRIJAN Singh - 3 months, 3 weeks ago

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i don't think they are your best friends... maybe friends maybe?

NSCS 747 - 1 month, 2 weeks ago

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I am not asking you ? Idiot

SRIJAN Singh - 1 month, 2 weeks ago

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@Srijan Singh

  1. He never replied to your comment as a an answer to a question, so he can comment that, and there is nothing wrong with it.

  2. If anyone's an idiot here, its you

  3. What he has said, is also true. At least, I am not your best friend, I don't know about the others, but best friend is kinda too far, because we hardly know each other. You might be a friend to the others, to me you're just an annoying brat.

  4. Don't reply to this. Get this in your head that unless you post one useful comment, you are doing the same thing Lam did in Nathan's Latex note. Your reply's are irritating enough already, Kat was right to call you a prick.

@SRIJAN Singh

Percy Jackson - 1 month, 1 week ago

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@Percy Jackson i regret telling kat off for calling him that

NSCS 747 - 1 month, 1 week ago

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@Nscs 747 lol yeah

Percy Jackson - 1 month, 1 week ago

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@Percy Jackson should i drop a nuke on him?

NSCS 747 - 1 month, 1 week ago

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@Nscs 747 Sure, I wouldn't mind :)

Percy Jackson - 1 month, 1 week ago

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@Percy Jackson well its not your average nuke but it is just as deadly and annoying can i test it on you to see if it works? it is still a prototype i will send u a small one

NSCS 747 - 1 month, 1 week ago

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@Vinayak Srivastava,@Mahdi Raza,@Aryan Sanghi,@Foolish Learner do very interesting

SRIJAN Singh - 3 months, 3 weeks ago

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@Vinayak Srivastava,@Mahdi Raza,@Aryan Sanghi,@Foolish Learner do very interesting

SRIJAN Singh - 3 months, 3 weeks ago

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I was going through my old notes, and found this very easy problem which 100% will get right, LOL :D

If, 1=5

2=10

3=15

4=20

5=?

Now don't comment like 2 is not equal to 10, this is a logic problem but the meaning of the 'equal to' = symbol remains the same. :D

Siddharth Chakravarty - 3 months, 4 weeks ago

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1

Navvye Anand - 1 month, 2 weeks ago

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What one?

SRIJAN Singh - 1 month, 2 weeks ago

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@Srijan Singh I think he is answering Siddharth's problem, as it is clearly a reply to that. Use your brain sometimes Sing...

Percy Jackson - 1 month, 2 weeks ago

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@Percy Jackson He didn't replied to that to siddharth comment so how i can say?

SRIJAN Singh - 1 month, 2 weeks ago

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@Srijan Singh Gods, don't you have a brain, coz he clearly replied that as an answer to siddharth's comment.

Percy Jackson - 1 month, 1 week ago

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@Percy Jackson ... no point telling him he will probably ask what" or something like that

NSCS 747 - 1 month, 2 weeks ago

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@Nscs 747 true lol...

Percy Jackson - 1 month, 2 weeks ago

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5 = 1, because in the first line 1 = 5, so 5 = 1 @Siddharth Chakravarty :)

Percy Jackson - 3 months, 3 weeks ago

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Good ☺️

Siddharth Chakravarty - 3 months, 3 weeks ago

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@Siddharth Chakravarty Mine is better:    \begin{aligned} &~~~\LARGE{\cdot \cdot} \\ &\Huge{\smile} \\ \end{aligned}

Vinayak Srivastava - 3 months, 3 weeks ago

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@Vinayak Srivastava @Vinayak Srivastava what was your answer

SRIJAN Singh - 3 months, 3 weeks ago

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@Srijan Singh I had seen it before, so I did not answer.

Vinayak Srivastava - 3 months, 3 weeks ago

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@Vinayak Srivastava ah! hey can you post a good problem for me or everyone .i want to do some math practice

SRIJAN Singh - 3 months, 3 weeks ago

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@Srijan Singh @Vinayak Srivastava. pls give reply

SRIJAN Singh - 3 months, 3 weeks ago

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@Srijan Singh @SRIJAN Singh - Click Community and search for problems there, there are many interesting problems. Not everyone is online always so please be patient or search in the community. Thanks!

Percy Jackson - 3 months, 3 weeks ago

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@Percy Jackson i had tried many problems from community but some are not of my level

SRIJAN Singh - 3 months, 3 weeks ago

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@Srijan Singh Well, we also post problems of that level.

Percy Jackson - 3 months, 3 weeks ago

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@Percy Jackson ookkaayy

SRIJAN Singh - 3 months, 3 weeks ago

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@Srijan Singh hey i solved many problems from community section please give me more problems @Vinayak Srivastava,@Aryan Sanghi,@Percy Jackson,@Siddharth Chakravarty

SRIJAN Singh - 3 months, 3 weeks ago

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@Srijan Singh Dude, please stop it. It is irritating because when you mention us, 2 notifications come. @SRIJAN Singh

Percy Jackson - 3 months, 3 weeks ago

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@Percy Jackson hey i'm not irritating you .i'm love with maths that's why i want to do further more problems

SRIJAN Singh - 3 months, 3 weeks ago

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@Srijan Singh First thing, whether you irritate me or not is my decision, and I think you are irritating. If you love math, just make problems by searching the internet and stop mentioning me. At least ask if it is ok to mention continuously. Also, Brilliant isn't the only place to do math.

This will keep you occupied :)

Percy Jackson - 3 months, 3 weeks ago

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ah! so silly

SRIJAN Singh - 3 months, 3 weeks ago

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@Srijan Singh Ikr but I still like this problem, because it leaves everyone dumbfounded LOL

Percy Jackson - 3 months, 3 weeks ago

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@Percy Jackson ah! you are online

SRIJAN Singh - 3 months, 3 weeks ago

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@Srijan Singh hey @Percy Jackson do my problem

SRIJAN Singh - 3 months, 3 weeks ago

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@Srijan Singh Got all of them correct :) @SRIJAN Singh

Percy Jackson - 3 months, 3 weeks ago

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@Percy Jackson @Percy Jackson.show the solution:)

SRIJAN Singh - 3 months, 3 weeks ago

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@Srijan Singh I didn't post it, because someone already posted solution before me, so no use of repeating the solution @SRIJAN Singh :)

Percy Jackson - 3 months, 3 weeks ago

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@Percy Jackson please give me problem for doing @Percy Jackson

SRIJAN Singh - 3 months, 3 weeks ago

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@Srijan Singh Check my profile then :)

Percy Jackson - 3 months, 3 weeks ago

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@Percy Jackson @Percy Jackson i have done your first ten problems and got one incorrect

SRIJAN Singh - 3 months, 3 weeks ago

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25

SRIJAN Singh - 3 months, 4 weeks ago

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Wrong 🙃

Siddharth Chakravarty - 3 months, 3 weeks ago

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@Pranshu Garba, try this

SRIJAN Singh - 3 months, 4 weeks ago

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@Vinayak Srivastava try this

SRIJAN Singh - 3 months, 4 weeks ago

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Try more practice makes man perfect try this

SRIJAN Singh - 3 months, 4 weeks ago

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@Aryan Sanghi , @Mahdi Raza,@Percy Jackson . Bore na try this

SRIJAN Singh - 3 months, 4 weeks ago

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@SRIJAN Singh, it is good that you are posting nice problems of Physics, but please give the links, as it is difficult for some people who are unfamiliar with the interface to get to it.

The procedure of giving link is quite simple:

Just use [[ and ]] brackets and in between write the link text, then open the (( bracket, paste the link, and then ))

I am giving the links for your first 2 problems, please remember this for later problems.

Problem 1

Problem 2

Keep posting good problems, keep learning!

Vinayak Srivastava - 3 months, 4 weeks ago

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Thanks for your suggestion me in class 7 try my problem I posted it now

SRIJAN Singh - 3 months, 4 weeks ago

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I haven't studied circular motion. I'll try it, but I don't know the concepts.

Vinayak Srivastava - 3 months, 4 weeks ago

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@Vinayak Srivastava How to paste the link can you explain again

SRIJAN Singh - 3 months, 4 weeks ago

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@Srijan Singh Just open the tab and copy the url, that's it.

Vinayak Srivastava - 3 months, 4 weeks ago

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@Vinayak Srivastava No that i know, but how that like you have written like Problem 1

SRIJAN Singh - 3 months, 4 weeks ago

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@Srijan Singh Open the [ bracket, then type inside, and then close it ]

1
[Problem 1](https://brilliant.org/problems/my-first-physics-probb-yeah/?ref_id=1599518)

Vinayak Srivastava - 3 months, 4 weeks ago

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@Vinayak Srivastava Hey there I learnt look down

SRIJAN Singh - 3 months, 4 weeks ago

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@Percy Jackson hey do My first physics probb yeah

SRIJAN Singh - 3 months, 4 weeks ago

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@Aryan Sanghi,@Vinayak Srivastava,@Mahdi Raza lookProblem 3

SRIJAN Singh - 3 months, 4 weeks ago

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This problem is not mine, but I found it good. Click Here!

Vinayak Srivastava - 3 months, 4 weeks ago

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Try out this question by me. Infinite Geometric Geometry series!!

Aryan Sanghi - 3 months, 4 weeks ago

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@Aryan Sanghi,@Mahdi Raza,@Vinayak Srivastava,@Siddharth Chakravarty hey everyone do you know about some international olympiad a 8th grader especially for math or science

SRIJAN Singh - 3 months, 4 weeks ago

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You can try nmtc too.

Kriti Kamal - 3 months, 4 weeks ago

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@Kriti Kamal.thanks for your suggestion

SRIJAN Singh - 3 months, 4 weeks ago

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Try out NSEJS and PRMO. They are meant for 8th and 9th graders. :)

Aryan Sanghi - 3 months, 4 weeks ago

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@Aryan Sanghi,Yeah in FIITJEE there are exams conducted, that you are telling..thanks

SRIJAN Singh - 3 months, 4 weeks ago

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All Indians, check out the NAEST test. Registrations last date is tomorrow 7th August.

Siddharth Chakravarty - 4 months ago

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@Vinayak Srivastava @Aryan Sanghi @Kriti Kamal @Mahdi Raza क्या सभी ने इसे देखा और रजिस्टर किया?

Siddharth Chakravarty - 4 months ago

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Yes, but didn't get some confirmation email except for an OTP email

Mahdi Raza - 4 months ago

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@Mahdi Raza Yes, I also.

Vinayak Srivastava - 4 months ago

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@Vinayak Srivastava The first test is on 9th August, maybe they will send prior to the test.

Siddharth Chakravarty - 4 months ago

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@Vinayak Srivastava,@Aryan Sanghi. do this question https://brilliant.org/problems/problem-is-for-testing-skills/?ref_id=1599194

SRIJAN Singh - 4 months ago

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The problem is wrong again @SRIJAN Singh

Percy Jackson - 4 months ago

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no

SRIJAN Singh - 4 months ago

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@Srijan Singh An irregular hexagon, can't have all congruent angles bro! @SRIJAN Singh

Percy Jackson - 4 months ago

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@Percy Jackson Are you really sure @Percy Jackson? Because the problem is correct.

Siddharth Chakravarty - 4 months ago

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@Siddharth Chakravarty Oh, now that I look at the solution, it does seem right. I have been taught that any hexagon with all angles equal is always regular, I guess that was only basic, and other factors come into play here. Sorry for the misconception @SRIJAN Singh, and Thanks @Siddharth Chakravarty for mentioning and telling me that it is correct :)

Percy Jackson - 4 months ago

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@Percy Jackson You should change your school, you are taught the wrong things. Instead, it should have been regular hexagons always have all the interior angles equal. The easiest way to see this is that a regular quadrilateral is a square, while a rectangle is not a regular quadrilateral but still has all the angles equal. Regular polygon means having all angles and sides equal.

Siddharth Chakravarty - 4 months ago

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@Siddharth Chakravarty Yes, maybe I haven't been paying attention in Geometry coz I hat it LOL, thank for clearing it up @Siddharth Chakravarty :)

Percy Jackson - 4 months ago

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@Percy Jackson Your welcome (Some text)

Siddharth Chakravarty - 4 months ago

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@Siddharth Chakravarty Lol 'some text' is an addictive thing started by Márton (some text)

Percy Jackson - 4 months ago

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@Percy Jackson noooooooooo if you want the solution look i will post it @Percy Jackson

SRIJAN Singh - 4 months ago

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@Srijan Singh @Percy Jackson no, its right

SRIJAN Singh - 4 months ago

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Try this problem Future of 2020?

Aryan Sanghi - 4 months ago

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okay

SRIJAN Singh - 4 months ago

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Answer to life, universe and everything: ππ×ln(π)\Large{\left \lceil{{\pi}^{\pi} \times \ln(\pi)}\right \rceil}

Vinayak Srivastava - 4 months ago

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is it 42?

Navvye Anand - 1 month ago

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in which grade are you

SRIJAN Singh - 4 months ago

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9th grade.

Vinayak Srivastava - 4 months ago

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We can make notes on these famous and beautiful equations LOL

Percy Jackson - 4 months ago

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eiπ+1=0\Large e^{i \pi} + 1 = 0

This is still better than that in my opinion :)

Percy Jackson - 4 months ago

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The actual answer is 101010    42101010 \implies 42 in binary

Percy Jackson - 4 months ago

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You mean 42 in decimal, because binary is only using 1's and 0's

Navvye Anand - 1 month ago

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@Navvye Anand No, I meant that 101010 is 42 but in binary format

Percy Jackson - 1 month ago

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Close, but not quite - 41.739323805 :)

Percy Jackson - 4 months ago

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He has included ceiling function, it will be 42

Mahdi Raza - 4 months ago

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@Mahdi Raza Oh! Didn't notice that :)

Percy Jackson - 4 months ago

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I have already put the Ceiling function :)

Vinayak Srivastava - 4 months ago

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@Vinayak Srivastava Oh! Didn't notice that :)

Percy Jackson - 4 months ago

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new problem

Kriti Kamal - 4 months ago

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I answered it, good that I told you the previous question was wrong otherwise a lot of people who have got it wrong.

Siddharth Chakravarty - 4 months ago

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@Siddharth Chakravarty Is anyone else getting a Brilliant glitch like thing? My notifications have disappeared and I'm only checking gmail for notifications. @Siddharth Chakravarty, @Vinayak Srivastava, @Kriti Kamal

Percy Jackson - 4 months ago

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@Percy Jackson Guys do what Vinayak said, and click View Full Site, it worked for me. @Siddharth Chakravarty, @Mahdi Raza

Percy Jackson - 4 months ago

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@Percy Jackson Please elaborate how i can do it. This view is Very frustrating

Mahdi Raza - 4 months ago

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@Mahdi Raza The menu where you open notifications, below them, there are many buttons, click on vie full site.

Vinayak Srivastava - 4 months ago

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@Mahdi Raza Ok nevermind, I got it. Thanks!!!

Mahdi Raza - 4 months ago

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@Percy Jackson I got no other change, just that it was changed to mobile site, I changed back to full site. Are you all seeing other changes I can't?

Vinayak Srivastava - 4 months ago

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@Vinayak Srivastava You are awesome! It worked! Turns out I was somehow in mobile site mode. LOL Thanks!

Percy Jackson - 4 months ago

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@Percy Jackson I just clicked on "View full site" in the top menu, it is as it was.

Vinayak Srivastava - 4 months ago

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@Percy Jackson Yes, something similar is happening to my UI as well. It's full screen and I can't see any notifications as well. The solutions are also aligned to left and not in centre. Definitely something weird is happening, maybe an update?

Mahdi Raza - 4 months ago

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@Percy Jackson No, but I hate this new UI.

Siddharth Chakravarty - 4 months ago

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@Vinayak Srivastava,i will post mainly geometry problems.

Kriti Kamal - 4 months ago

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No problem!

Vinayak Srivastava - 4 months ago

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Do you know ceva's theorem?

Kriti Kamal - 4 months ago

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@Kriti Kamal No, I'll Google it now.

Vinayak Srivastava - 4 months ago

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Percy Jackson - 4 months ago

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These question are not of prmo level. They might be of nmtc level.

Kriti Kamal - 4 months ago

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Google says: National Telecommunication Monitoring Centre

Vinayak Srivastava - 4 months ago

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@Vinayak Srivastava National mathematical contest test. It is slightly less harder than prmo.

Kriti Kamal - 4 months ago

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@Kriti Kamal National Mathematical Talent Contest, not National mathematical contest test @Kriti Kamal - Even though this is something Indian, and you will know better, I know I'm right because Google says so :)

Percy Jackson - 4 months ago

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@Percy Jackson Yes,you are right.

Kriti Kamal - 4 months ago

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@Kriti Kamal The paper looks hard to me, though.

Vinayak Srivastava - 4 months ago

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@Vinayak Srivastava Do you know co-ordinate geometry and locus???

Kriti Kamal - 4 months ago

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@Kriti Kamal No, it is xxth chapter and I have reached x3x-3th chapter in my book. Also, I haven't studied Math from many days, I was doing my school work, which is still less than half done.

Vinayak Srivastava - 4 months ago

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@Vinayak Srivastava That's why you find it difficult.

Kriti Kamal - 4 months ago

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@Kriti Kamal Oh, I searched ntmc, you wrote nmtc. I will search it. Thanks for telling!

Vinayak Srivastava - 4 months ago

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I am not a liar :( BTW, what is ntmc?

Vinayak Srivastava - 4 months ago

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@Vinayak Srivastava Ok,you are not.

Kriti Kamal - 4 months ago

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Check this problem, I have deleted the other one

link

Vinayak Srivastava - 4 months ago

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A pre rmo problem

Kriti Kamal - 4 months ago

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I couldn't solve it, please post a solution.

Vinayak Srivastava - 4 months ago

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I have posted a solution. :-) @Vinayak Srivastava.

Kriti Kamal - 4 months ago

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I am a bit busy now.but, i will post it before 9pm.@Siddharth Chakravarty,please if you are free then post the answer.

Kriti Kamal - 4 months ago

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Well, my mother is Indian, so I can wish you all good luck!

Yajat Shamji - 4 months ago

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I'm preparing for PRMO too!

Atij Jain - 4 months ago

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Nice! Do share any good problems you find!

Vinayak Srivastava - 4 months ago

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Here, I learnt a great concept. Do check it out, Holder's Inequality. It is used to solve many PRMO and RMO problems.

Aryan Sanghi - 4 months ago

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I am unable to understand its proof.:-(

Kriti Kamal - 4 months ago

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Nice! But it involves integrals, I have not studied them. I only know differentiation.

Vinayak Srivastava - 4 months ago

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