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1. 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:
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By: guest on 01 Jun 2017 05.48 pm
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 (i) and (ii) we get: x = 26, y = 22. The required answer = 26.