A group of pigs and chickens are in the backyard of your house.

when counted by heads the number is 15.

when counted by legs the number is 44.

How many pigs and chickens are there?

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A group of pigs and chickens are in the backyard of your house.

when counted by heads the number is 15.

when counted by legs the number is 44.

How many pigs and chickens are there?

...