Question: A and B can complete a work alone in 18 days and 24 days respectively. If B started work alone and after 3 days

A and B can complete a work alone in 18 days and

A and B can complete a work alone in 18 days and 24 days respectively. If B started work alone and after 3 days A also joined then in how many days whole work will be completed. (a) 6 days (b) 12 days (c) 8 days (d) 10 days (e) 15 days

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