Question

A man has some hens and cows. If the number of heads be 50 and the number of feet be 136. What is the number of hens?

Answer 1

Answer:

no of hens = 32 and cows = 18

Step-by-step explanation:

let no of hens = a

and no of cows = b

a+b = 50

=> a = 50-b

2a+4b = 136

=> 2(50-b) + 4b = 136

=> 100 - 2b + 4b = 136

=> 100 + 2b = 136

=> 2b = 136 - 100 = 36

=> b = 36/2 = 18

=> a = 50-b = 50-18 = 32