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### Question Asked by a Student from EXXAMM.com Team

** Q 1679180016. ** `A` and `B` are two taps which can fill a tank

individually in `10` min and `20` min, respectively.

However, there is a leakage at the bottom, which

can empty a filled tank in `40` min. If the tank is

empty initially, then how much time will both the

taps take to fill the tank with leakage'?

**CDS 2015 Paper-2**