Two taps can fill an empty tank in 2 hours and 3 hours respectively. If both the taps are opened together, the tank will be filled in
Time taken by the taps = 2 hrs and 3 hrs respectively
Time taken by both of them together = $$ \frac{1}{\frac{1}{2}+\frac{1}{3}}$$
= $$\frac{6}{5} hours.$$ = 1 hr and 12 mins
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