SOLUTION: On a farm there are chicken and horses. There are a total of 79 heads and 176 legs. How many chickens are on the farm?

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Question 395370: On a farm there are chicken and horses. There are a total of 79 heads and 176 legs. How many chickens are on the farm?
Answer by Edwin McCravy(20054) About Me  (Show Source):
You can put this solution on YOUR website!
On a farm there are chicken and horses. There are a total of 79 heads and 176 legs. How many chickens are on the farm?


A horse has 1 pair of front legs and 1 pair of back legs.  A chicken
has only 1 pair of "front" legs, and no back legs.

Since there are 176 legs, there are 88 leg-pairs.  Each of the 79
heads has 1 front leg-pair under it, so 79 of the leg-pairs are front
leg-pairs, and the remaining 9 leg pairs are back leg-pairs.  They 
belong to the horses, so there are 9 horses, and the other 70 
animals are chickens.

Edwin