Mathematics · Time and Work

A and B together can do a piece of work in 20 days. B alone can do the same work in 45 days. How much time (in days) will A alone take to complete the same work?

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A and B together can do a piece of work in 20 days. B alone can do the same work in 45 days. How much time (in days) will A alone take to complete the same work?

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A and B together can do a piece of work in 20 days. B alone can do the same work in 45 days. How much time (in days) will A alone take to complete the same work?

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