Question

30 men can bulid a wall in 50 days. How many more men are required to build another wall, double in size, in 75 days
a.11
b.12.
c.13​

Answer 1

Answer:

10

Step-by-step explanation:

M1 = 30; D1 = 50; W1 = 1      [Men, Days and Wok]

M2 = ?; D2 = 75; W2 = 2      [Work doubled. So, W2 = 2]

[(M1 × D1)÷W1] = [(M2 × D2)÷W2]

(30×50)/1 = (M2×75)/2

M2 = 40

Already 30 men are there. So, additionally 10 more men needed.