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Q.19 Ten men can dig a well in 9 days. In how many days can 15 men dig the same well ? |
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Answer» 1 man can dig it in 9×10 days=90 daysand 15 men can dig it in 90/15 days=6 days 10 men dig the well in 9 days.Let's suppose the total work done by these men is one.So if 10 men take 9 days then 10 men did 1/9 work each day.Assuming efficiency for each man equal.Therefore one man does 1/90 work each day.So 15 men can do 15/90 work each day.Let no of days taken by 15 men is x.So, (15/90 )* x= 1Therefore x = 6So 15 men can dig well in 6 days. |
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