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Two pipes A and B can fill a cistern in ...

Two pipes A and B can fill a cistern in `37(1/2)` and 45 min, respectively. Both pipes are opened. The cistern will be filled in just half an hour, if pipe B is turned off after (a) 5 min

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S CHAND IIT JEE FOUNDATION-TIME AND WORK -Self Assessment Sheet - 13
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  14. A tap can fill a tank in 6 hours. After half the tank is filled, th...

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