In a group of cows and hens, the number of legs are 14 more than twice the number of heads. The number of cows is

Question

Accepted Answer

Let the number of cows be x and the number of hens be y.

Then, 4x + 2y = 2 (x + y) + 14 ⟺ 4x + 2y = 2x + 2y + 14 ⟺ 2x = 14 ⟺ x = 7.

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