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Question

Pipe ‘A’ can fill a tank in 16 hours whereas leak ‘A’ can empty it in 20 hours. If they both operate along with pipe ‘B’, then the given tank gets filled in 8 hours. How much time is needed to fill the given tank if pipe ‘B’ and leak ‘A’ work together?

A 37.5 hours

B 60 hours

C 30 hours

D 22.5 hours

E 16 hours

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