Q. 54.0( 10 Votes )

A pipe can fill a

Answer :

A pipe can fill a cistern in: 9 hours

Let a leak empty the cistern in: X hours

Due to the leak time taken to fill the cistern : 10 hours

Part of the cistern filled by pipe in one hour:

Part of the cistern emptied by leak in one hour:




X = 90 hours

Therefore the leak will empty the cistern in 90 hours.

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RS Aggarwal - Mathematics