Where, M = Number of men, D = number of days, W = Amount of work Calculation: We have total Scheduled time = 180 days 1∕5th of the scheduled time =
180
5
=36 days According to the given information, 120 labors can do 1∕6th of the total work in 36 days ⇒ remaining work =5∕6th of total work According to the formula used ⇒