15. 12 men can complete a project in 8 days. For the first two days, all 12 men
reported for work but on the third and fourth days 2 men did not report for work.
If in the following days, 8 men reported for work, in total how many days, the the whole project is completed
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Answer:
10.5
Step-by-step explanation:
12 men can completed a project in 8 days
10 men can do the same work in 48/5 days
8 men can complete it in 12 days
first 2 days: All 12 men completed the work in 2/8 days = 1/4 work completed
remaining 1-1/4 =3/4
3rd and 4th days: only 10 men can do the work in (2*5)/48= 5/24 work completed
remaining work = 3/4-5/24 =13/24
finally 8 men reported and completed the work in D/12=13/24= 6.5
total days= 2+2+6.5= 10.5
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