Q. 244.2( 5 Votes )

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Answer :

Given,


A cistern can filled by one tap = 8 hours


Another can filled it in = 4 hours


Cistern filled by first tap in 1 hour =


Cistern filled by another tap in 1 hour = part


Net cistern filled in 1 hour =


Thus, both cistern can fill the cistern in = hours


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RS Aggarwal - Mathematics