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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:
  • a)
    22
  • b)
    24
  • c)
    23
  • d)
    26
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
A man has some hens and cows. If the number of heads be 48 and the num...
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.
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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:a)22b)24c)23d)26Correct answer is option 'D'. Can you explain this answer?
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