You can only use odd numbers in this question
2006-10-18 12:22:49 · 11 answers · asked by MJ 1 in Pets ➔ Other - Pets
21 in one and the rest empty.
2006-10-18 12:33:40 · answer #1 · answered by pknutson_sws 5 · 0⤊ 0⤋
In elementary school math you learn that an even number of odd numbers added together will always be an even number. It remains a conjecture but everyone follows it as a rule. So unless you can leave one pen empty (7 pigs in each of 3 pens, none in the fourth), the problem isn't possible to solve.
2006-10-18 19:35:08 · answer #2 · answered by NeRdYkId1101 3 · 0⤊ 0⤋
3 7 and 11
2006-10-18 19:25:59 · answer #3 · answered by eddie k 3 · 0⤊ 0⤋
6
2006-10-18 19:34:39 · answer #4 · answered by b_carpenter_4135 1 · 0⤊ 0⤋
It's impossible. Zero is not an odd number and there is no such thing as a negative pig. Also 21 is an odd number. If you add up an even number of odd numbers you will always get an even number.
2006-10-20 14:23:57 · answer #5 · answered by devilishblueyes 7 · 0⤊ 0⤋
Well you'll have to get rid of one of the pigs. 21/4=5 remainder 1. So your going to have to have one pen with one even number
2006-10-18 19:31:12 · answer #6 · answered by Shy 3 · 0⤊ 0⤋
7 in two and 3 in the other two
2006-10-18 19:24:53 · answer #7 · answered by tee3663 2 · 0⤊ 0⤋
That is impossible. adding 2 odd number together produces an even number, and adding 2 even numbers together also produces an even number, so adding 4 odd numbers together most produce an even number.
2006-10-18 19:26:06 · answer #8 · answered by ultramarineninja 2 · 0⤊ 0⤋
Five in each pen and 1 in the oven.
2006-10-18 19:26:07 · answer #9 · answered by Anonymous · 0⤊ 0⤋
5, 7, 9 and zero
2006-10-18 19:26:00 · answer #10 · answered by Anonymous · 0⤊ 0⤋