Question
A man can complete a work in 12 days. He worked for 5
days and then left. If the remaining work is completed by another man who can complete it in 18 days, how long will it take for the second man to finish the work?Solution
Work done by the first man in 5 days = 5/12. Remaining work = 1 - 5/12 = 7/12. Work done by the second man in one day = 1/18. Days taken by the second man = (7/12) / (1/18) = 7/12 × 18 = 10.5 days. Answer: c) 10.5 days.
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