Two taps A and B can fill an overhead tank in 10 hours and 15 hours re – InterviewSolution

1.	Two taps A and B can fill an overhead tank in 10 hours and 15 hours respectively. Both the taps are opened for 4 hours and then B is turned off. How much time will A take to fill the remaining tank?
Answer» Two taps $A$ and $B$ can fill an overhead tank in $10$ hours and $15$ hours respectively. Both the taps are opened for $4$ hours and then $B$ is turned off. How much time will $A$ take to fill the remaining tank?

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