Two pipes A and B can fill a tank in 12 minutes and 24 minutes, respectively, while a third pipe C can empty the full tank in 32 minutes. All the three pipes are opened simultaneously. How-ever, pipe C is closed 2 minutes before the tank is filled. In how much time (in minutes) will the tank be full?
A. 8
B. 10
C. 9
D. 12
Answer: Option B
This Question Belongs to Arithmetic Ability >> Pipes And Cistern
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