Q12 of 47 Page 174

A can do a piece of work in 20 days while B alone can do In 12 days. B worked at it for 9 days. A can finish the remaining work in

Number of days A required do a piece of work : 20


Number of days B required do a piece of work : 12


Work done by A in one day:


Work done by B in one day:


B works alone for 9 days, so work completed by B in 9 days : =


Work left =


But th of the work is already done by B


Time required to complete the remaining th of the work by A : 5 days


Time taken to finish the work 9 + 5 = 14 days


A can finish the remaining work in : 5 days

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