There are some hens and cows in a farm. If there are a total of 40 legs, then what is the possible number of hens and cows ?

Answer: B. 10 hens and 5 cows

10 hens = 10 x 2 legs = 20 legs. And, 5 cows = 5 x 4 legs = 20 legs. Total is 40 legs.
All other options are incorrect.
Option (A) gives 44 legs.
Option (C) gives 50 legs.
Option (D) gives 36 legs.

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