# First Ever $Mathathon \ 2020$

The Math-athon is an event hosted by me.

All contestants need to solve problems posted by me and post solutions.

The best solutions shall be selected by me. The selection process involves these parameters -

Uniqueness - $10$ points (Most Unique answer gets more points)

Latex - $10$ points (Most Latex-y answer gets more points)

No mistakes - $10$ points (Most accurate answer gets more points)

Clarity - $10$ points (Most clear and elaborate answer gets more points)

Time - $10$ points (Earliest answer gets more points)

$10$ points in total

There will be $3$ stages - Easy, Medium and Hard

The same parameters and rules follow for all $3$ stages, only the difficulty of problems changes.

If you have used a formula or website, please give the link as a note under your solution.

If you have any questions post it in the comments.

$Top \ 5$ shall go in the Hall of Fame and leaderboard scores will be shown every saturday.

Problems will be posted every weekday.

The Math-athon starts on $Monday, \ 6th \ July$, all ages can participate.

May the smartest Math-athoners win!!!!!!!!

(Note : You can join till $5th \ July \ 11:59 \ PM$, after that no more applications accepted)

(Special Mention - Thank you to the RadMaths community for their support in this Mathathon, please check it out - RadMaths community , they help people learn and advance in Math with interesting questions and discussions.)

Note by A Former Brilliant Member
1 year ago

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.

MarkdownAppears as
*italics* or _italics_ italics
**bold** or __bold__ bold
- bulleted- list
• bulleted
• list
1. numbered2. 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 1paragraph 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 $2 \times 3$
2^{34} $2^{34}$
a_{i-1} $a_{i-1}$
\frac{2}{3} $\frac{2}{3}$
\sqrt{2} $\sqrt{2}$
\sum_{i=1}^3 $\sum_{i=1}^3$
\sin \theta $\sin \theta$
\boxed{123} $\boxed{123}$

Sort by:

Leaderboard will be updated every hour today, then every saturday from tomorrow

Username: Bách Hữu Trần Nickname: Falken09

- 1 year ago

Username: Lorenz W. Chosen nickname: SPY2016

- 1 year ago

- 1 year ago

Nickname: I will come last

- 1 year ago

Awesome, funny nickname!

Maybe I'll change it, for now it is this.

- 1 year ago

Ok, changes can be made at any time before the contest

Hehe I got a downvote here also!

- 1 year ago

LOL, spammers love you

I got it by some kind people who gave it after that downvote. So, now I have too many of them!

- 1 year ago

Then,i am also kind:-)

Yes, you are 'kind' of weird. Its a joke, don't take it seriously.

Lmao...lol

Haha you are funny

- 1 year ago

# The contest will last from 20th July to 26th July and results will come on 1st August, 2 days will be Easy, 2 days will be Medium, 2 days Hard and the last day IMPOSSIBLE(Not Really). Leaderboard is still limited to 50 participants, and 2 spots are open for judges who want to help me, it would be great if a moderator could join, but members are also allowed.

will you add me to participate now?

- 1 year ago

👍i m excited.

- 1 year ago

Great

I'll help be a judge.

Besides, @Aryan Sanghi believes I am a LaTeX warden.

- 1 year ago

But you're participating, and i'm not sure you're moderator or staff, thanks anyway.

Seriously, I still think I'll be a judge.

But you judge my solutions.

Fair?

- 1 year ago

Yes, that seems fair, and I will crosscheck your checking to eliminate any chance of cheating,

# Is Everyone Fine With THat?

I am definitely $\infty\%$ fine with that.

- 1 year ago

But aren't you doing the same thing as I'm doing for the Mathematicians War and matching the same dates? I would prefer not to do and change the dates as there would be a confusion among our common members.

Oh! I'm sorry, I had changed the dates first and then looked at your contest, i'll change the dates immediately.

I could help in judging, I got vacation anyway.

- 1 year ago

Sure, you can be the 3rd judge, I'll announce it publicly

I had a doubt like what is the syllabus or difficulty of the questions?

Difficulty depends on the stage, so Easy stage has easy questions and so on. Most questions will be math but sometimes a few logic might slip through. Hope your doubt has been cleared :)

I mean will it include all branches of mathematics including algebra, probability, geometry, statistics, calculus and other branches.

Yes, of course. All branches of math are included.

$\text{\huge Attempt \ The \ Sample \ Question \ Everyone}$

I thought it was a competition question.

- 1 year ago

# Guys, I've had a familial crisis and I'm sorry for leaving you hanging on the first Mathathon day, but I would like it if @Jeff Giff, @Yajat Shamji or @Hamza Anushath took charge of this contest, you can change the name rules and whatever you like. Thank you all.

hope everything is okay with you and your family.

- 1 year ago

Family first.

We can Marathon whenever. There will be time for puzzles later.

I hope you and loved ones will be okay. Stay safe!

- 1 year ago

Stay safe. Hope it goes well!

- 1 year ago

I am planning to host my own Math Contest, I am making a note on it. I will soon let you all know and hope everybody participates.

Hey, I am hosting a new math contest now known as The Mathematicians War, you can check other info and how to participate in this note: The Mathematicians War

I'd like to participate, it looks awesome, great job!

# Thank you everyone, my family is safe thanks to your prayers, and i hope your families are safe. The Mathathon shall go on! I have posted a message with all the updates and changes.

Don't worry. I put a last sample problem.

- 1 year ago

# We have a new judge - @Yajat Shamji, who will also participate in the contest, but I will check his solutions so that all possibilities of cheating are eliminated. 1 spot left! Come quick 3rd judge!

I am A OK with that!

- 1 year ago

$\huge 2nd \ SAMPLE \ PROBLEM, \ GO \ CHECK \ IT \ OUT, \ ITS \ LINK \ IS \ AVAILABLE \ ON \ THE \ ALL \ PROBLEMS \ PAGE!!!$

# GO TO THE SAMPLE PROBLEM, EVERYBODY! GO TO MATHATHON SAMPLE PROBLEM!

- 1 year ago

Its Algebra, I made it because I saw that you didn't like geometry and mensuration that much :)

But my # comment?

- 1 year ago

What # ??

The comment with capital and large letters?

Included a # .

- 1 year ago

Yes its awesome! What I meant was that you had posted in LeaderBoard that you don't like Geometry and Mensuration much, so I made an Algebra problem as a 2nd sample :)

Solved it.

- 1 year ago

Great! Did you post a solution?

No. I don't want to yet. I'm posting a solution for my own problem.

- 1 year ago

# Hurrah! 🎉

@Percy Jackson

- 1 year ago

@Hamza Anushath - Do you copy/paste emojis or what?

Yes, I do copy/paste @Percy Jackson

- 1 year ago

Oh, ok, check out my new notes and problem in my feed @Hamza Anushath

# $\text{\huge has started everyone!}$

@Lam King Fung, @Lam Luong, @Anshik Kumar Tiwari, @Kumudesh Ghosh, @Hamza Anushath, @Aarav Dave, @Páll Márton, @Anonymous Ninja, @Feng Li, @DΣΔD ρθθι, @Siddharth Chakravarty, @Diodoro Siculo, @Zakir Husain, @Yajat Shamji, @Kriti Kamal, @Pam Satterthwaite, @Lorenz W.

Just a quick suggestion: Eventually the time category should be removed due to time zones and vacation. E.g. in Europe your comment happened at 5 a.m. .

- 1 year ago

@Percy Jackson, I live in a different time zone so a quick suggestion = can you tell us the time in which time zone that the contest starts?

P.S. can you get rid of the time because everyone lives in a different time zone?

(Taken at 9:43 AM, July 20, 2020)

- 1 year ago

# @Hamza Anushath, @Yajat Shamji, @Ved Pradhan, @Páll Márton, @Jeff Giff, @Vikram Karki, Why aren't you guys posting solutions? 3 questions have already been posted!

I forgot it :( I will go to my grandmother so I won't post solutions. Maybe without pictures if possible :)

Where is the link to the problems? I can't find it. It seems there is some technical issue.

@Emma Watson mention[10447539:Emma Watson]

OK cool Username: Kumudesh Ghosh Nickname: Anonymous

- 1 year ago

First Participant!! Welcome Anonymous!!

For those who don't know, Latex is a kind of formatting that people use to make solutions look more pleasing. You can see my Latex guide, but its horrible so i suggest Daniel Liu's Latex Guide

Username: Márton Páll (if not allowed a instead of á) Nickname: palmarbg (this is my school code :) )

Don't you request an email address? :)
And one other question: What does $\LaTeX$ solution mean? The text should be in \text{} too?

You can use Latex to make your solution more pleasing, so it isn't compulsory to use everything as latex, just enough to make it the most pleasing and beautiful yet understandable.

@Ved Pradhan , @Vinayak Srivastava , @Kriti Kamal , @Lam King Fung , Everyone, I have important news, I have decided to post a sample question tomorrow, to check if everything is going smoothly.

@Ved Pradhan, @Vinayak Srivastava, @Kriti Kamal, @Lam King Fung NEW ANNOUNCEMENT IN GIANT LETTERS, CHECK IT :)

Okay!

- 1 year ago

- 1 year ago

@Anonymous Ninja - Hi Magnus , I'm Percy

@Percy Jackson, the problems will be of all subjects?

- 1 year ago

I mean, science also?

- 1 year ago

No science, as it is a Mathathon and i don't know much science, I'm only good at math.

Also, at which time will you post them?

- 1 year ago

Mostly morning, sometimes afternoon, due to virtual classes

- 1 year ago

- 1 year ago

Username- DΣΔD ρθθι Νickname - DΣΔD ρθθι

- 1 year ago

Awesome, second contestant!

I might be late sometimes as I have exams coming soon, but I'll do my best to be consistent.

Username & Nickname both : Zakir Husain

- 1 year ago

Username: Yajat Shamji Nickname: AlgebraWhiz$15$@UK

- 1 year ago

Username : Diodoro Siculo Nickname : Longo Sofista

- 1 year ago

@Percy Jackson, count me in!

@Hamza Anushath is my name!

Nickname: $The$ $cute$ $devil$

- 1 year ago

@Percy Jackson,I also want to participate.My name kriti kamal. Nickname-I'm a fool

Funny nickname, but done!

Competitions - Slap from my crush(What is this, saw it in your profiel)

Yes,it is true it is my only reward.My crush has beaten me infront of class :-P

Well, none of that in this contest please.

Stay to the topic of math

Ya,:-)

User name : Harry Potter Potter Nick name: Count me in

- 1 year ago

Thank god, you finally came.

👍👍

- 1 year ago

I posted the name and topic of Monday's Problem

😂

- 1 year ago

Also, for last submissions,

Midnight of $5$th July equals $6$th July $00:00$

Take $1$ minute off?...

- 1 year ago

yes, $11:59$

Can you edit the last submissions time to $11:59$?

- 1 year ago

yes, i can , and i did

Once we reach $25$ contestants, there will be a spoiler(teensy, tiny spoiler)about Monday's question.

LaTeX, please! (Just enforcing LaTeX where I don't see it - I am like the LaTeX warden...)

- 1 year ago

Where should i put $\LaTeX{}$

The $25$ and the $11$.

I should wrap my $15$.

@Aryan Sanghi should LaTeX his $789$

- 1 year ago

ok, ill latex my numbers

Yajat, it's my nickname, not some numbers. Latex is not meant to be used everywhere, it's a waste of time then.

- 1 year ago

Well, don't do it if you don't want to but do you think I am a LaTeX warden? @Aryan Sanghi

- 1 year ago

Yes, I guess even better than Chew Wrong Cheong sir. :)

- 1 year ago

Jeez! Do you think BRILLIANT will even put that up as a community job?

- 1 year ago

No, I don't think so. It has to invest then. Also, there is always someone available to post a Latex solution like me, Mahdi, Siddharth, Vinayak and ....

- 1 year ago

Hm. You're right.

- 1 year ago

Also, your $11:59$

- 1 year ago

Third and finally, the numbers on your note text.

- 1 year ago

Anything else? How's the latex?

You need to do the $3$'s and the $2020$ in the note text.

And @Aryan Sanghi needs to LaTeX his $789$.

Otherwise, almost done!

- 1 year ago

And you forgot the $11:59$ in the submission time comment.

- 1 year ago

I'm too tired

Username: sneha nickname: jattyg how long is the competition?

- 1 year ago

probably till end of july

Are you happy Yajat? All $\LaTeX{}$ done.

Nearly. The $11:59$ in the submission comments.

And, @Aryan Sanghi, can you please LaTeX wrap your $789$?

- 1 year ago

Fine.........

Clearly annoyed and tired

Now???? My work is done, only Aryan Sanghi has to so it now.

Yes, you're done.

@Aryan Sanghi, for the last time, can you please LaTeX wrap your $789$?

- 1 year ago

Thank the gods!

Ok. If there's any more, I'll tell you tomorrow.

- 1 year ago

Ohh Noo LOL

Don't worry - not tomorrow - that was a joke.

Maybe on the weekend (to make your Mathathon look smart, presentable and fancy)...

- 1 year ago

Thanks, I was kidding too, whenever you think something's not good enough feel free to point it out.

My class was going on. How could you expect me to see your reply?

- 1 year ago

Whoops! Well, I thought leaving it there until you could reply.

- 1 year ago

Username : Sonu Sharma Nickname : SN Sam

- 1 year ago

Say hello to the leaderboard, you're in!

- 1 year ago

@Percy Jackson I think you should remove upvote criteria as there is a fake account with many people (don't take it personally everyone). Also, it's not a real and useful criteria, isn't it? You are there to judge the solutions. Just a suggestion. :)

- 1 year ago

Of course @Aryan Sanghi, I will give it a thought, until then the rule shall stay

Actually, my thought behind it was, I will be creating the questions, so I'll know their answers, judging solutions should be up to someone who actually finds it helpful, because he/she doesn't know the answer. Downvotes don't count, and you are all allowed to give a note in your solutions, asking for upvotes if someone found it helpful, but I would suggest focusing on your solutions, the upvotes will automatically come.

You are thinking ideal. Consider real. :) Anyway, it's your contest, so your rules.

- 1 year ago

Ideal thought is always of opposite of real one

Username: Lam Luong Nickname: Mr. Random

- 1 year ago

Username: Mahdi Raza, Nickname: Mathy Mahdi

- 1 year ago

- 1 year ago

Thanks!!

- 1 year ago

I'm subbed too, love your channel, notify me when it hits 1K subs(I'm guessing pretty soon).

Thanks! Not so soon, it takes time. But hey, thanks for the encouragement :)

- 1 year ago

Hey u have a channel, I'm gonna subscribe it.

- 1 year ago

Username: Lam King Fung Nickname: KevinL

- 1 year ago

Nickname: Deva Ishvara

Sincere congratulations on your initiative. I expect greater things will follow.

A note about my preferences: de-emphasize or even eliminate an arbitrary speed consideration. Emphasize and intentionally create space/time for creative and well-constructed work. As designed, these type of events pander to teenage male norms, which tend to be dysfunctional, at this time, unfortunately.

LaTeX is simply a text formatting app. Why are there considerations for using this app? Well constructed responses should be placed on equal footing.

Up votes is so ... Facebook. Although this is easy to implement, without additional constraints, this does not promote high quality, well constructed responses. Considering alliances is a distraction and not a support.

Single judge? I smell drama ...

I suppose if I felt strongly about these things then I should create my own contest. This is your contest, so Best Wishes! Is there money involved after I win? I would appreciate a Happy Meal, or even a donut.

Stay safe.

- 1 year ago

@David Hairston, I was thinking of making my own contest too...

- 1 year ago

That's funny ... better hurry. Soon, I expect there will be 25 contests and no time to participate in most of them.

Stay safe.

- 1 year ago

- 1 year ago

You Hindu?

- 1 year ago

Namaste.

I am not Hindu but I I appreciate Hindu culture (as reflected in my nickname).

- 1 year ago

Ok. I'm Hindu.

- 1 year ago

The prize is awesome, its the satisfaction of winning a contest, knowing that you helped a lot of people while you were at it.

You can trust me to choose the best contestant and I am not into it for the drama.

I would suggest use of LaTeX as it makes your solution more pleasing and interesting to go through, I would rather read a LaTeX solution than a normal one.

Time is assigned as I have to evaluate the solutions and I have to keep more focus on my studies. Also, similiar solutions appear after some time and this repetition causes few of the solutions to get ignored.

I hope you understand!

I still would prefer a donut ...

Will the contestants be able to submit images or animations?

- 1 year ago

Yes, Of course images and animations are allowed, and i can give you a donut right now -

Nice joke!

- 1 year ago

LOL, Thanks

So if you allow images then you could also consider answers formatted without using LaTeX.

I'm intrigued and encouraged. How do you insert images in comments?

{weather forecast: rain in 20 minutes}

- 1 year ago

What i do is, I go to Daily challenges, look for an answer that i got right(very hard as most are wrong), click that picture icon in the solutions, select the pic from files, and then copy/paste. Simple!!

What I do is create a note, and smash the upload image button. Then I copy the link/text

It will be more easier @Percy Jackson @David Hairston

- 1 year ago

it would be much easier to just type ! [ ] ( link ) and put the link of your image in place of link.(No spaces there, though)

Almost there, thanks.

- 1 year ago

link means this - download the pic, then drag it from whatever file, into your browser search bar, click enter and then a link will appear in the search bar, that's the link you want

I would be looking forward to participate in contests made by you guys!

I support constructive criticism, please do tell me if you feel that anything is wrong.

- 1 year ago

Username Emma Watson . Nickname: Mysterio

- 1 year ago

You're in Mysterio! :)

... not Black Widow?

- 1 year ago

Uhhhh...I didn't know Mysterio was a name of a super villain! I just heard it some where ,and thought it was good. I thought it was referring to a mysterious person or something 😓. Well now I can't change it......🙁(I wish I can)

- 1 year ago

Actually, you can change it, if you want, until the contest begins.

Yes please!!!!! I want it to be "BlueWolf." (I got nothing else)

- 1 year ago

Done, though I don't know why you chose BlueWolf, I thought you'll go for something a bit more, Harry Potter-y...........

I couldn't think of anything else out of all names I could have picked , I thought of BlueWolf Don't know why.....well whatever 😑 I also asked'Count me in' of what she thought of the name. She said it was fine.😐

- 1 year ago

I think she chose Bluewolf because she is Harry potter's fan. Remember Warewolf, Remus Lupin.

- 1 year ago

You could try $\text{Hermione}$ if you meant Emma Watson as your actor of Harry Potter...

and not some other movie...

- 1 year ago

Yes, she meant Harry Potter, she's a HP Fangirl, like @Harry Potter Potter.

That's actually nice ,but what's done is done.i can't change it again and again.By the way it's not all that bad(my new nickname: BlueWolf)😅

- 1 year ago

Mysterio does suck as a supervillain though.........LOL

Everyone, I know that I said I'd give a sneak-peek after 25 contestants, and we've hit 25 contestants I know that most of you guys are eager - @Yajat Shamji, So Here's some info on the question -

$Name \ - \ Submerged \ Balls, \ \ \ \ \ \ \ \ Topic \ - \ Volume$

That's it no more peeking, you'll have to wait!!!!!!

- 1 year ago

Thanks

- 1 year ago

- 1 year ago

Thanks!

- 1 year ago

Username: Shriniketan Ruppa Nick name: Smart Bucket

- 1 year ago

You're in Mr.Bucket :)

User Name: Joe Bratt, Nickname: papajoe

- 1 year ago

Username : Keshav Raj Nickname : Loser

- 1 year ago

@KESHAV RAJ - If you meant Loser then your spelling's wrong.

Thanks! ✔️

- 1 year ago

- 1 year ago

Nickname: Ree Manin Tegral

[EDIT] Why am I getting spammed with so many notifications?

- 1 year ago

Simply unsubscribe if you don't want notifications

I wouldn't. You never know if something is important!

- 1 year ago

@Aarav Dave : Yes, that's what I'm doing. I don't want to miss anything!

- 1 year ago

@Ved Pradhan, you can unsubscribe from the comments, just tell me that you're doing it, that way, I can @mention you when its an important announcement :)

@Percy Jackson, did you see the new edits in my note of $\LaTeX$

- 1 year ago

@Percy Jackson, I am also getting a lot of notifications, so I am unsubscribing, please mention me if there is some important announcement. Thanks!

- 1 year ago

Sure, there's one right now.

@Percy Jackson : Okay, I'm also unsubscribing, so please mention me if there's anything important. Thanks!

- 1 year ago

Ok,i will remember it.

Hi, @Percy Jackson, i'm unsubscribing for now, please mention me for important information. Thanks!

- 1 year ago

- 1 year ago

Great idea! I am joining. Username: Aarav Dave Nickname: A11

- 1 year ago

No I am changing my nickname to Mathathon.

- 1 year ago

Okay Aarav

Thanks!

- 1 year ago

@Percy Jackson I understand it will be on this Monday, however, could you announce the time it will take place.

- 1 year ago

- 1 year ago

There is a channle on YouTube called 'Random Learning Palace' have you tried??

- 1 year ago

I'm just 10th pass. But I want to try. Username & Nickname: Anshik Kumar Tiwari

- 1 year ago

- 1 year ago

Username: Félix Pérez Haoñie Nickname: Learner

@Vinayak Srivastava, @Kriti Kamal, @Ved Pradhan, @Lam King Fung - I have posted the sample question everyone, please solve it and post solutions, but remember, this doesn't affect your points, its like a warmup. Sample Question

- 1 year ago

- 1 year ago

Username: Rebecca Lee Nickname: Math whiz

- 1 year ago

Just Kidding, you're in the Leader Board, Math whiz!

We got a tough competent with you sir!

- 1 year ago

You've got a tough competition with 40+ participants @Aryan Sanghi!

This is the whole question link :)

- 1 year ago

Can I join this Or am I late

If i can Nickname : Username

or anything which is suitable

- 1 year ago

@Percy Jackson, don't you mean $50$ points in total instead of $10$?