1.

A, B and C can finish a piece of work in 10 days, 12 days and 15 days respectively. A and B started working together. After working for one day A left the work while C joins. After two days B left the work while A joins. There is holiday on fourth day and then process is repeated till the work in finished. In how many days work would be finished?

Answer»


ANSWER :7 DAYS


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