A group of 150 men can complete a work in 40
days working 8 hours a day. After 15 days, 100
more men join them. If all of them work for 4
more hours per day, in how many days will, the
remaining work be completed?
Answers
Answered by
9
40 men can complete a work in 150 days. It means the work requires 40*150 = 6000 man-days.
After 10 days, the work completed to date is 40*10 = 400 man-days. What remains is 6000–400 = 5600 man-days of input.
If 30 members join, there will be a total of 40+30 = 70 men. So the time taken to complete the remaining work is 5600 man-days/70 men = 80 days.
Hence the work gets completed in 90 days from the start.
Answered by
0
Answer:
90 days is the answer of question
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