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Question

Pipe A and pipe B can fill the empty tank in 20 hours and 24 hours, respectively whereas pipe C can empty the full tank ‘x’ hours. Find the value of ‘x’ if pipes A, B and C together can fill the empty tank in 15 hours.

A 11

B 13

C 15

D 9

E 12

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IBPS RRB Scale 2

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