SOLUTION: In a barn with cows and chickens, the number of legs was 16 more than twice the number of heads. How many cows were in the barn?

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Question 254150: In a barn with cows and chickens, the number of legs was 16 more than twice the number of heads. How many cows were in the barn?
Answer by palanisamy(496) About Me  (Show Source):
You can put this solution on YOUR website!
Let the number of cows = x
Let the number of chickens = y
Total number of heads = x+y
Every cow has 4 legs and every chicken has 2 legs
Total number of legs = 4x+2y
Given, the number of legs was 16 more than twice the number of heads.
4x+2y = 2(x+y)+16
4x+2y = 2x+2y+16
2x = 16
x = 8
Therefore the number of cows = 8