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by preetha_85 » Sun Jul 27, 2008 6:10 am
Hi

Assume that the 1st pump fills xltres/hr.
then the 2nd pump will fill at 1.5lit/hr.

In 4 hrs they will 10x lit.
If only the 2nd pump works it will take a time of 10x/1.5x =20/3.
Is tat the OA ?
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by sudhir3127 » Sun Jul 27, 2008 6:23 am
My answer is 20/3 as well...
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by elimenda » Sun Jul 27, 2008 7:09 am
yes it is,

tks for the explanation!!
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