Square Track

by orangefronted, Apr 3, 2025, 6:46 AM

Ziron and Zane are running around a square track at constant speeds. Ziron runs at a speed of 2 meters per second, while Zane runs twice as fast as Ziron. They begin at the same point and start running in opposite directions. If they meet after exactly 8 seconds, what is the area enclosed by the square track?

Easy Counting?

by orangefronted, Apr 3, 2025, 6:45 AM

Lucien randomly picks two distinct numbers at the same time from the following group of numbers: $\frac{1}{8}, \frac{1}{4},\frac{1}{2},1,2,4,8$ . If the product of the 2 numbers is also a member of this group, how many selections can be done?

prime factorization formula questions

by Soupboy0, Apr 3, 2025, 2:54 AM

If i have a number, say $N$ with prime factorization $p_1^{e_1}p_2^{e_2}...p_n^{e_n}$ , and I want to find $3, 4, 5, ..., k$ numbers that multiply to $N$ , does anybody know a formula for this?

number theory

prime factorization

Tricky summation

by arfekete, Apr 2, 2025, 2:15 AM

If $\dots = 7$ , what is the value of $1 + 2 + 3 + \dots + 100$ ?

Summations

computation

April Fools

Rationalizing

by mithu542, Apr 2, 2025, 2:02 AM

Rationalize the following fraction:

$\dfrac{5\sqrt{2}-2+\sqrt{6}}{24-10\sqrt{2}}.$

rationalizing denominators

Probability NOT a perfect square

by orangefronted, Apr 1, 2025, 5:37 PM

Mike decides to play a game with himself. He begins with a score of 0 and proceeds to flip a fair coin. If he lands on heads, he adds 2 to his score. If he lands on tails, he subtracts 1 from his score. After 5 flips, what is the probability that Mike’s score is not a perfect square?

probability

MATHCOUNTS STATE difficulty

by Eddie_tiger, Apr 1, 2025, 1:13 PM

Loading poll details...

I personally thought the problems were much easier than last year, but I didn't really improve as much as I would of liked to improve.

MATHCOUNTS

poll

2025 MATHCOUNTS State Hub

by SirAppel, Apr 1, 2025, 12:22 PM

Previous Years' "Hubs": (2022) (2023) (2024)Please Read

Now that it's April and we're allowed to discuss, and no one else has made this yet ...

CA: 43 (45 44 43 43 43 42 42 41 41 41)
NJ: 43 (45 44 44 43 39 42 40 40 39 38) *
NY: 42 (43 42 42 42 41 40)
TX: 42 (43 43 43 42 42 40 40 38 38 38)
MA: 41 (45 43 42 41)
WA: 41 (41 45 42 41 41 41 41 41 41 40) *
FL: 39 (42 41 40 39 38 37 37)
IN: 39 (41 40 40 39 ?? 35)
NC: 39 (42 42 41 39)
IL: 38 (41 40 39 38 38 38)
OR: 38 (44 41? 38 38)
PA: 38 (41 40 40 38 38 37 36 36 34 34) *
MD: 37 (43 39 39 37 37 37)
CT: 36 (44 39?
One user claimed 38 whereas another claims 39
38 36 34 34 34 34)
MI: 36 (39 41 41 36 37 37 36 36 36 36) *
MN: 36 (40 36 36 36 35 35 35 34)
CO: 35 (41 37 37 35 35 35 ?? 31 31 30) *
GA: 35 (38 37 36 35 34 34 34 34 34 33)
OH: 35 (41 37 36 35)
AR: 34 (46 45 35 34 33 31 31 31 29 29)
WI: 34 (40 37 37 34 35 30 28 29 29 29) *
NH: 31 (42 35 33 31 30)
DE: 30 (34 33 32 30 30 29 28 27 26? 24)
SC: 30 (33 33 31 30)
IA: 29 (33 30 31 29 29 29 29 29 29 29 29 29) *
NE: 28 (34 30 28 28 27 27 26 26 25 25)
SD: 22 (30 29 24 22 22 22 21 21 20 20)

Cutoffs Unknown

* means that CDR is official in that state.

Notes

For those asking about the removal of the tiers, I'd like to quote Jason himself:

peace09 wrote:

learn from my mistakes

Help contribute by sharing your state's cutoffs!
As per last year's guidelines, refrain from problem discussion until their official release on the MATHCOUNTS website.

This post has been edited 58 times. Last edited by SirAppel, Today at 2:45 AM

I cant find one problem

by tanujkundu, Sep 17, 2024, 3:00 AM

Does anybody know which problem is about when a number is a meteor and when a number is a shooting star?

Factoring Marathon

by pican, Aug 4, 2015, 9:40 PM

Hello guys,
I think we should start a factoring marathon. Post your solutions like this SWhatever, and your problems like this PWhatever. Please make your own problems, and I'll start off simple: P1

This post has been edited 1 time. Last edited by pican, Nov 15, 2015, 12:40 AM

marathon

Factoring

math

Submit

You will be remembered
by giangtruong13, Feb 26, 2025, 3:38 PM
2025 shout!
by just_a_math_girl, Jan 12, 2025, 7:25 AM
2024 shout
by bachkieu, Aug 22, 2024, 12:52 AM
helooooooooooo
by owenccc, Sep 27, 2023, 12:59 AM
hullo :<
by gracemoon124, Jul 14, 2023, 2:33 AM
hello $\text{[math]}$
by LeoLionTank, Feb 17, 2023, 9:02 PM
Halo thear
by HoRI_DA_GRe8, Oct 18, 2022, 7:44 AM
hi!!
just found this and I can't wait to read more!
so happy to have found this blog!
by Morrigan_Black, Jan 28, 2022, 1:05 PM
still waiting for the mathlinks camp lol
by CinarArslan, Jan 9, 2022, 1:55 PM
hello
by CyclicISLscelesTrapezoid, Nov 29, 2021, 6:36 PM
Right below the shout box it says how many it has.
by pith0n, May 11, 2021, 5:08 AM
Oh really the blog has 100 posts! I never counted the number of posts here. If I get some free time I will create a new page on my wordpress website and there I will post all the contents of this blog. So, make sure that you check the wordpress site.
by adityaguharoy, Mar 21, 2021, 2:58 PM
Nice blog!
by DCode10, Mar 10, 2021, 7:00 PM
Hi adityaguharoy! Nice blog!
by masadca, Feb 4, 2021, 9:19 PM
wow just noticed congrats on 100 posts in this blog !!!!!!!
by mathical8, Jan 7, 2021, 4:20 AM
Nice blog!
by Mathisfun04, Dec 2, 2016, 12:00 AM
Nice blog!!!
by Ilikeapos, Aug 24, 2016, 2:56 PM
really nice CSS
by StarFrost7, Aug 16, 2016, 3:37 AM
hi!
Post some more!
Also nice css
by Intellectuality123, Aug 12, 2016, 11:35 PM
Hello!!!!!
by MinionLA, Jul 18, 2016, 9:15 PM
hi everyone
by matthMaster, Jul 2, 2016, 1:36 AM
You have a great blog here; just add some more stuff and it will be even better!
by bobert1, Jun 30, 2016, 9:29 PM
yeah sure we must and will discuss real numbers.
by adityaguharoy, Jun 20, 2016, 4:11 AM
Why not real numbers
by skipiano, Jun 17, 2016, 2:35 PM
very interesting topic !! ?? !!
by adityaguharoy, Jun 12, 2016, 6:52 AM
Hello!!!!!!! Very interesting topic, here!
by MinionLA, Jun 9, 2016, 11:43 PM
Should it not start by the discussion of Set Theory.
by alexanderoldspartan, Jun 9, 2016, 11:03 AM
Darn I missed it
by skipiano, Jun 9, 2016, 4:52 AM
first shout >
by doitsudoitsu, Apr 26, 2016, 8:03 PM

117 shouts

An Introduction to the Theory of Mathematics