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Thursday, 17 April 2014

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solved ssc cgl work and time question

Q 1. Two pipes A and B can fill a tank in 6 hours and 8 hours respectively. If both the pipes are opened together, then after how many hours should B be closed so that the tank is full in 4 hours?
a.    2/3
b.    1
c.     2
d.    8/3





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