Aptitude - Pipes and Cisterns - Discussion

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Q.

An electric pump can fill a tank in 3 hours. Because of a leak in the tank, it took 3 hours 30 min to fill the tank. The leak can drain out all the water of the tank in :. [Assistant Grade]                         
A. 10 hours 30 min B. 21 hours
C. 12 hours D. 24 hours

Answer: Option B
Explaination:

 


Discussion

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