A man has some hens and cows. If the number of heads be 48 and the number of feet equals 140, then the number of hens will be:

Question

Accepted Answer

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

Then, x + y = 48 .... (i)

and 2x + 4y = 140 ⟹ x + 2y = 70 .... (ii)

Solving …

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