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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:
Answer & Solution
Correct Answer:
Option
D
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
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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