Question Paper from: IBPS RRB Clerk Mains 2017

Two pies A and B can fill a tank in 30 minutes and 45 minutes respectively. Both pipes are opened. The tank will be filled
in just 20 minutes, if the pipe B is turned off after :

1:
10 minutes
2:
18 minutes
3:
8 minutes
4:
15 minutes
5:
None of these
Solution:
Chapter Name: Pipes and cisterns

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IBPS RRB Clerk Mains 2017

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