Hi Guys, I just want to say that JOMO 5 has started! Please reshare and tell your friends about it. You can check out the paper here. Please read the rules before starting

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.

Markdown

Appears as

*italics* or _italics_

italics

**bold** or __bold__

bold

- bulleted - list

bulleted

list

1. numbered 2. list

numbered

list

Note: you must add a full line of space before and after lists for them to show up correctly

@Bogdan Simeonov@Sharky Kesa
After Triple-checking, there IS a problem in question 2, we are terribly sorry and we have edited the question.
@Finn Hulse You might want to resubmit for question 2 as well since you already submitted

We are sorry Bogdan and all others for the inconvenience but there IS a problem in question 2 ....
We have edited the file and soon , the correct version will be uploaded on the website ..... Apologies for your time that it consumed unnecessarily .....

I am a problem writer at JOMO but i also feel that this one is easier than previous JOMO (of course feeling easy/difficult may differ among people) .... Go on , all the best ! Progress expected this time .......

I didnt attempt any of the contest. If u are saying of the previous combinatorics contest, then I admit my worst prepared topic is combinatorics, while my strongest topic is inequalities.. But, previous contest was also easy, but I didn't get a few. As for this contest, I got all ques but one till now.. R u taking in it? all the best then

Arrgghh... I cant do this, the problems arent bad but it just takes too much to convert everything to PDF 's and everything, i barely have that much time. sorry!

@Sharky Kesa
–
We are sorry Sharky and all others for the inconvenience but there IS a problem in question 2 ....
We have edited the file and soon , the correct version will be uploaded on the website ..... Apologies for your time that it consumed unnecessarily .....

I've told all of my friends! This is going to be really fun but @Yan Yau Cheng could you go a little easy on the trig? After all, this is Junior. I just finished. :D

What ? I think the correct file(ques 2 problem fixed) is now uploaded on the website ..... All participants , we're sorry for that inconvenience , really!!

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:

`*italics*`

or`_italics_`

italics`**bold**`

or`__bold__`

boldNote: you must add a full line of space before and after lists for them to show up correctlyparagraph 1

paragraph 2

`[example link](https://brilliant.org)`

`> This is a quote`

Remember to wrap math in`\(`

...`\)`

or`\[`

...`\]`

to ensure proper formatting.`2 \times 3`

`2^{34}`

`a_{i-1}`

`\frac{2}{3}`

`\sqrt{2}`

`\sum_{i=1}^3`

`\sin \theta`

`\boxed{123}`

## Comments

Sort by:

TopNewestGreat problems and solutions in JOMO5! Looking forward to the next one.

Log in to reply

@Bogdan Simeonov @Sharky Kesa After Triple-checking, there IS a problem in question 2, we are terribly sorry and we have edited the question. @Finn Hulse You might want to resubmit for question 2 as well since you already submitted

Log in to reply

Could you please tell me what the edit to the question is? I am not able to access the new file.

Log in to reply

Oh yes I did! Thanks. :D

Log in to reply

I cannot find any non-negative solutions to Qn 2.Is there an issue in the problem?

Log in to reply

Happened to me as well.

Log in to reply

We are sorry Bogdan and all others for the inconvenience but there IS a problem in question 2 .... We have edited the file and soon , the correct version will be uploaded on the website ..... Apologies for your time that it consumed unnecessarily .....

Log in to reply

Why is JOMO and Proofathon always together? Can you please colobrate time so that I can participate in both.

Log in to reply

I think this one is pretty easy ,, Nice job, All the best for all participants

Log in to reply

The proof problems were a bit strange. No casework, no induction, not really much of anything! :P

Log in to reply

Really? Last weeks for me was the easiest, this one for me was moderately tough.

Log in to reply

I am a problem writer at JOMO but i also feel that this one is easier than previous JOMO (of course feeling easy/difficult may differ among people) .... Go on , all the best ! Progress expected this time .......

Log in to reply

I didnt attempt any of the contest. If u are saying of the previous combinatorics contest, then I admit my worst prepared topic is combinatorics, while my strongest topic is inequalities.. But, previous contest was also easy, but I didn't get a few. As for this contest, I got all ques but one till now.. R u taking in it? all the best then

Log in to reply

Arrgghh... I cant do this, the problems arent bad but it just takes too much to convert everything to PDF 's and everything, i barely have that much time. sorry!

Log in to reply

Don't worry for that now , we'll now allow word documents .... You may submit it as microsoft office Word document too !

Log in to reply

Dude I finished in 40 minutes. :P

Log in to reply

For question 2, I can't find any non-negative integer solutions for $x$, $y$ and $z$. Did yours have any negative numbers?

Log in to reply

Log in to reply

Log in to reply

Log in to reply

Log in to reply

Log in to reply

Log in to reply

I've told all of my friends! This is going to be really fun but @Yan Yau Cheng could you go a little easy on the trig? After all, this is Junior. I just finished. :D

Log in to reply

@Aditya Raut

Log in to reply

What ? I think the correct file(ques 2 problem fixed) is now uploaded on the website ..... All participants , we're sorry for that inconvenience , really!!

Log in to reply

Log in to reply

Log in to reply

Log in to reply

totally agreed, especially since I just learnt basic trig only .-.

Log in to reply

Haha, yeah but I'm in Algebra 1 so... sucks for me. :P

Log in to reply