Question

If the fodder for 21 cows is the same as that for 15 bulls,how many cows will need as much fodder as 105 bulls?

Answer 1

21 cows = 15 bulls

Hence 105 bulls = 15*7
Fodder of 105 bulls = 21*7
= 147 cows..

Hope it helps!

Answer 2

let no. of cows be x. so,
15/21 = 105/x
=> x = 147