A group of 150 men can complete a work in 40days working 8 hours a day. After 15 days, 100more men join them. If all of them work for 4more hours per day, in how many days will, theremaining work be completed? About the author Brielle
[tex] \underline \pink{αиѕωєя}[/tex] 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. Reply
[tex] \underline \pink{αиѕωєя}[/tex]
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.
Answer:
90 days is the answer of question