a contractor employs 40 men to do a piece of work in 60 days each man working 9 hours a day he is 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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Answer:
45
Step-by-step explanation:
total man hours initially = 40*60*9=21600 man-hours.
new hours = 48*10=480 hrs
new men required=21600/480=45
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