90 men can complete a work in 24 days working 8 hrs a day.How many men are required to complete the same work in 18 days working 15/2 hours a day?
Answers
Answered by
55
Work completion requires 90 men and 8 hours/day during 24 days
W = 90 men * 8 hr / day * 24 day = 90*8*24 man-hours
Men work for 18 days working 15/2 hours per day :
total number of hours = H = 18 days * 15/2 hrs/day = 9*15 hours
Men required = W / H = 90*8*24 / (9 * 15) = 128
W = 90 men * 8 hr / day * 24 day = 90*8*24 man-hours
Men work for 18 days working 15/2 hours per day :
total number of hours = H = 18 days * 15/2 hrs/day = 9*15 hours
Men required = W / H = 90*8*24 / (9 * 15) = 128
Answered by
8
Answer:
90 men completed the work in 24 hrs if they with 8hrs/ day
Total with hrs for 90 men = 90*192
If the work has to be completed in 18 days with 7½
Working hrs , total work hrs = 18 * 7½ = 15*9
=135 hrs
Required number of worker = (90*192)/135 = 128 workers
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