A contractor agreed to complete a work in 40 days. He engaged 25 men for the work and after 24 days, only one-third of the work was completed. How many more men must be employ to complete the work 4 days earlier?
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Step-by-step explanation:
mandays used to complete one third work= 24*25
mandays required to complete 100% work = 24*25*3
days to complete work =40-4=36
man required to complete work = mandays /days = 24*25*3/36= 50
additional man required= 50-25=25
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