Math
posted by Lizzy .
A donkey and a mule were carrying sacks of apples. The donkey groaned so the mule said to him: "Why are you complaining? If you gave me one sack, I would have twice as many as you; if I gave you one of my sacks, then we would have equal loads." How many sacks was each carrying?

done by bobpursely about 2 weeks ago ...
http://www.jiskha.com/display.cgi?id=1282663289 
Mule; 3
Donkey; 2