Question

If 36 men can do a piece of work in 25 days, in how many days will 15 men do it?

Answer 1

60 days

Explanation:

No. of men = 36, 15
No. of days = 25, x (x = days)
use inverse proportion
36 x 25 = 15x
900 = 15x
900 / 15
x = 60