A road can be constructed by 45 men in 56 days. How many men will be needed to construct the road in 72 days?
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If 6 men do the job in 12 days, then each of the 6 of them worked for 12 days, which means they worked for 6×12=72 days, so the job takes 72 work days to complete. If all men work at the same rate, then these other 5 will complete the job in
72 days5 men=14.4 daysman
Therefore, it’ll take the group of 5 men 14.4 days to complete the job.
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