A contractor employs 40 men to do a piece of work in 60 days. Each man working 9 hours per day. He then requested to do

the job in 48 days. How many more men working 10 hours a day does he need to employ?

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# A contractor employs 40 men to do a piece of work in 60 days. Each man working 9 hours per

A contractor employs 40 men to do a piece of work in 60 days. Each man working 9 hours per day. He then requested to do

the job in 48 days. How many more men working 10 hours a day does he need to employ?