Question

12 men working 8 hours a day, can build a wall in 20 days.in how many days will 20 men build the same wall working on 6 hours a day

Answer 1

Answer:

The correct answer is 16 days.

Explanation:

According to the basic formula, we know that,

M1 * D1 * H1 = M2 * D2 * H2 , where M is the number of men, D is the number                     of days and H is the number of hours.

Here, according to the conditions given,

12*20*8 = 20*D2*6

D2= (12*20*8) / (20*6) = 16

Hence, 20 men can build the same wall in 16 days working 6 hours a day.