if 25 men working 8 hours a day remake a road in 63 days how long will 45 men working 9 hours a day will do same work in 5 days
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1
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40
Step-by-step explanation:
25 men working 8 hours a day = 8 x 25 = 200 hours of work done a day.
They do a job in 63 days so total time taken is 12,600 hours.
45 men working 7 hours a day = 45 x 7 = 315 hours of work a day.
Number of days taken = 12,600/315 = 40
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