1 . Pipe A alone can fill a tankin 8 hours .Pipe B can fill it in 6 hours . If both the pipes are operated and after 2 hours pipe A is closed, then the other pipe will fill the tank in.
- A. 6 hours
- B. 3 1/2 hours
- C. 4 hours
- D. 1 1/2 hours
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Sonali &-Janata Bank | Officer (IT)| 04.01.2019
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