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Question

In a group of cows and chickens, the number of legs was 14 more than twice the number of heads. The number of cows was:

A
5
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B
7
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C
10
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D
12
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Solution

The correct option is B 7
Given, 4 × (no. of cows) + 2 × (no. of chickens) = 2 × (no. of cows + no of chickens) + 14:
no. of cows = 7

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