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Topic
First Poster
Last Poster
The sheep problem
ysn613   9
N 2 hours ago by programjames1
a) If I have three sheep, how can I arrange them so that they are all an equal distance away from each other?
b)If I have four sheep, how can I do the same thing as I wanted to do in part a)?
9 replies
ysn613
3 hours ago
programjames1
2 hours ago
The daily problem!
Leeoz   23
N 2 hours ago by huajun78
Every day, I will try to post a new problem for you all to solve! If you want to post a daily problem, you can! :)

Please hide solutions and answers, hints are fine though! :)

The first problem is:
[quote=March 21st Problem]Alice flips a fair coin until she gets 2 heads in a row, or a tail and then a head. What is the probability that she stopped after 2 heads in a row? Express your answer as a common fraction.[/quote]
23 replies
Leeoz
Mar 21, 2025
huajun78
2 hours ago
k You see?
Spacepandamath13   14
N 2 hours ago by MaxTheMaster
Why does $1+1=3$?

You see, if I give CaseOh $1$ apple, and you give him $1$ apple, he will throw up $1$ apple that he had previously eaten, leaving their $3$ apples in the pile.
14 replies
Spacepandamath13
Yesterday at 11:51 PM
MaxTheMaster
2 hours ago
Anyone who knows MATHCOUNTS well?
ysn613   18
N 3 hours ago by happyfish0922
I missed the signup for MATHCOUNTS this year, and I think I could have made it to nats, based on my scores on the tests(I took them after MATHCOUNTS posted them on their website). Anyone have any study tips for next year?

P.S. Does anybody know if you can sign up for MATHCOUNTS individually, or do I need to try to convince 3 other kids from my school to compete?
18 replies
ysn613
Yesterday at 11:33 PM
happyfish0922
3 hours ago
Is this still true?
RoyalPrince   2
N 4 hours ago by dragonborn56
Is this post still active? https://artofproblemsolving.com/community/c3h1867292_marathon_threads
2 replies
RoyalPrince
4 hours ago
dragonborn56
4 hours ago
Water Watermelon
hwenterprise   16
N Today at 7:21 AM by KF329
A giant watermelon weighed 50 pounds and was 99 percent water. After sitting in the hot sun, some of the water evaporated so that the watermelon was only 98 percent water. What is the new weight of the watermelon?
16 replies
hwenterprise
Sep 18, 2005
KF329
Today at 7:21 AM
Construct problem
makurorin   0
Today at 6:20 AM
Construct angle 3 degree.
0 replies
makurorin
Today at 6:20 AM
0 replies
9 Am I going insane?
PenguFish   6
N Today at 5:03 AM by Skillfulcotton
I feel stupid honestly, and fyi, I did go over every question. Focus is counting with symmetry
6 replies
PenguFish
Today at 1:47 AM
Skillfulcotton
Today at 5:03 AM
Newton Sums
mithu542   4
N Today at 2:14 AM by aidan0626
Should I memorize Newton's Sums? I already know the first two, but do you think it is worthy to memorize some more (especially 3)?

Website about Newton Sums
4 replies
mithu542
Today at 1:59 AM
aidan0626
Today at 2:14 AM
real math problems
Soupboy0   1
N Today at 1:12 AM by AbhayAttarde01
Ill be posting questions once in a while. Here's the first question:

What fraction of numbers from $1$ to $1000$ have the digit $7$ and are divisible by $3$?
1 reply
Soupboy0
Yesterday at 11:40 PM
AbhayAttarde01
Today at 1:12 AM
a