A and B together can complete a piece of work in 12 days They worked together for 5 days and then A ...........

Quantitative Aptitude (CGL) Time and work

A and B together can complete a piece of work in 12 days. They worked together for 5 days and then A alone finished the rest work in 14 days. A alone can complete the work in _____.

24 days

22 days

20 days

18 days

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Explanation:

Efficiency of (A + B) = 1/12
Work done in 5 days = 5/12
Remaining work = 1 – 5/12=7/12
7/12 work done by A in → 14 days
Full work will be done by A in ⇒ 24 days