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- Two pipes A and B can separately fill a tank in 12 and 15 minutes respectively.
Question 1:
Two pipes A and B can separately fill a tank in 12 and 15 minutes respectively. A third pipe C can drain off 45 liters of water per minute. If all the pipes are opened, the tank can be filled in 15 minutes. What is the capacity of the tank? A. 480 liters
B. 540 liters
Feedback 1/12 + 1/15 - 1/x = 1/15
x = 12
12 * 45 = 540
x = 12
12 * 45 = 540
C. 600 liters
D. 675 liters
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