Aptitude - Pipes and Cisterns - Discussion

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Q.

TapsA and B can fiJi a bucket in 12 minutes and 15 minutes respectively. If both are opened and A is closed after 3 minutes, how much further time would it take for B to fill the bucket                         
A. 7 nun. 45 sec B. 8 mm. 5 sec
C. 7 mm. 15 sec D. 8 mm. 15 sec

Answer: Option D
Explaination:

 


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