Question

If one-Fifth of one-Fourth of a number is 5/80, find the number.

Answer 1

let consider the number x

1/5*1/4*x = 5/80
1/20*x = 5/80
x/20 = 5/80
x/20*20 = 5/80*20 (multiply both side by 20)
x = 5/4