Pipes and Cistern - Quantitative Aptitude (MCQ) questions for Q. 68

Q.  Two pipes A and B can fill a tank in 24 minutes and 32 minutes respectively. If both the pipes are opened simultaneously, after how much time should B be closed so that the tank is full in 18 minutes?
- Published on 12 Jun 15

a. 5 minutes
b. 6 minutes
c. 8 minutes
d. 9 minutes

ANSWER: 8 minutes

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