Posted by **Mike** on Tuesday, September 11, 2012 at 6:51pm.

A farmer has both ducks and pigs in a pen together. There are a total of 22 legs in the pen, If there are 7 animals in the pen, how many of each type of animal are in the farmer's pen?

- Mathematics -
**Anonymous**, Monday, January 19, 2015 at 8:31pm
28

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