Aptitude - Pipes and Cisterns - Discussion

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Q.

Two pipes A and B can fill a tank in 10 hours and 15 hours respectively. If both the pipes open together how much time will it take to fill the tank?                         
A. 5 hrs B. 2 hrs
C. 3 hrs D. 6 hrs

Answer: Option D
Explaination:

 


No exp




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