Mathematics · Pipes and Cisterns
A tank can be filled by a pipe P in 32 minutes and by pipe Q in 36 minutes. When it is full, it can be emptied by a pipe R in 20 minutes. If all the three pipes are opened simultaneously, half of the tank will be filled in how many minutes?
- 15525
- 255513✓
- 35535
- 42785
Correct answer
55513
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