Question

20 men can complete 1/3rd of a piece of work in 20 days. How many more men should be employed to finish the rest of the work in 25 more days

Answer 1

hii mate

Given, M1 = 20

M2 = 20 + x

W1 = 1/3

W2 = 1 - 1/3 =2/3

D1 =20 and D2 = 25

According to the formula, M1D1W2 = M2D2W1

20 x20 x (2/3) =(20 + x) x 25 x (1/3)

20 x 20 x (2/3)= (20 + x) x 25/3

= > 16 x 2 = 20 + x

x = 32 - 20 = 12

hope it will help u