Question

A and B together can do a piece of work in 15 days ,but A alone can do it in 20 days .how many days would B take alone to do the same work​

Answer 1

Answer:If A and B together can complete a piece of work in 15 days and B alone in 20 days, then in how many days can A alone complete the work ? ∴ A alone will do the work in 60 days.

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