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put this solution on YOUR website!A certain piece of work can be completed by 40 worker in 40 days.
If 5 workers leave every 10 days, in how many days d work will be completed?
:
Find the no. of man-days required to completed: 40 * 40 = 1600 man-days
:
Day--mandays-total mandays
10---400---400
20---350---750
30---300---1050
40---250---1300
50---200---1500
:
After 50 days:
1500 man-hrs have been accumulated, 15 men on the job then, 100 more man-days required
15d = 100
d = 100/15
d - 6
days
total days: 56
days, which is a in the given answers
