Q. 93.7( 3 Votes )

A pump can fill a

Answer :

A pipe can fill a cistern in: 2 hours


Let a leak empty the cistern in: X hours


Due to the leak time taken to fill the cistern : 2 = hours


Part of the cistern filled by pipe in one hour:


Part of the cistern emptied by leak in one hour:


=


=


=


X = 14 hours


Therefore the leak will empty the cistern in 14 hours.

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RS Aggarwal - Mathematics