You have 10 coins and 3 cups. Arrange the coins in the cups so there is an odd amount of coins in each cup. What is the solution?
2006-11-17 01:57:56 · 15 answers · asked by baka_desho 2 in Science & Mathematics ➔ Mathematics
5 in cup 1, 3 in cup 2, 2 in cup 3
Put cup 2 in cup 3
Voila, an odd number of coins in each cup
It's the same as 5 in 2 cups and one of those in the 3rd but that answer had already been given.
2006-11-17 02:06:47 · answer #1 · answered by Anonymous · 2⤊ 2⤋
Take a cup put 4 coins in it. For the other two cups, put three coins in each one. Take one of the cups with three coins and put it inside the cup holding 4 coins. The cup originally holding four coins is now in fact holding seven coins. The other two cups are holding three.
2006-11-17 10:10:41 · answer #2 · answered by Count Acumen 5 · 1⤊ 1⤋
I love brain teasers and of course the trick to this one has to be finding the hidden clue, because when you put an odd number of coins in two cups there will always be an even number left for the third cup. So, does the answer have something to do with the value of the coins? I will research some more and watch to see if someone figures it out.
2006-11-17 10:08:20 · answer #3 · answered by Anonymous · 0⤊ 3⤋
Since you didn't put the qualifier that you need to use all the coins, you could just put any combination of add numbered coins in each cup and have some coins left over.
Since you like brain teasers, check out the teaser section on the NSA's website. I actually had to correct them on one of their teasers.
2006-11-17 10:10:58 · answer #4 · answered by Anonymous · 0⤊ 2⤋
Do you have to use all 10 coins?
Put one coin in each cup.
2006-11-17 10:07:06 · answer #5 · answered by Anonymous · 0⤊ 3⤋
Well mathematically with out any varables its as simple 10 / 3 = 3.3333 infanitely which means defacing money inorder to physically do the problem. But since it is technically illegal to deface money. So if you're going to have to have 10 whole coins you are going to have 1 coin left over.
So algebraically it would be expresed as 3x + 1 = 10
2006-11-17 14:33:48 · answer #6 · answered by ikeman32 6 · 0⤊ 2⤋
in one cup you put 5 coins, the other cup put 5 coins and put one of these cups into the third cup.
2006-11-17 10:04:34 · answer #7 · answered by Jer 3 · 5⤊ 2⤋
put 3 coins in every cup and throw the last coin.lol.
2006-11-17 10:06:34 · answer #8 · answered by anitha 4 · 0⤊ 3⤋
put 1 coin in each cup and go buy yourself 7 of those little gummy fish
2006-11-17 10:15:31 · answer #9 · answered by Anonymous · 0⤊ 2⤋
put three coins in each cup and have one left over
2006-11-17 10:06:48 · answer #10 · answered by superbad91 1 · 0⤊ 3⤋