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Two pipes A and B are opened together to fill a tank. Both pipes fill the tank in a certain time. If A separately takes 16 min more than the time taken by (A + B) and B takes 9 min more than the time taken by (A + B). Find the time taken by A and B to fill the tank when both the pipes are opened together.
A) 10 min
B) 12 min
C) 15 min
D) 8 min
Correct answer:
B) 12 min
Description for Correct answer:
Here, a = 16 and b = 9
Required time = \( \Large \sqrt{ab} \)
= \( \Large \sqrt{16 \times 9} = 4 \times 3 \) =12 min
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