Question

A wall can be built by 6 men working 8 hours per day in 5 days. How many days will it take 4 men to build the same wall if they worked only 5 hours per day??

Answer 1

Total number of working hours = 6x8x5 = 240 hours

Let x be the number of days required

240 = 4(5)(x)

x = 12 days