1. Tardigrade
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  3. Mathematics
  4. Two taps A and B can fill a tank in 15 min and 20 min, respectively. If both the taps are opened simultaneously, then in how much time can the empty tank be filled?

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Q. Two taps $A$ and $B$ can fill a tank in $15 min$ and $20 min$, respectively. If both the taps are opened simultaneously, then in how much time can the empty tank be filled?

Time and Work, Pipes and Cisterns

Solution:

Find the part of the tank filled by $A$ and $B$ together in $1 \min$.