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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 |
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Answer: Option B Explanation: 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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