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A pipe can empty a tank in 40 minutes...

A pipe can empty a tank in 40 minutes. A second pipe with diameter twice as much as that of the first is also attached with the tan to empty it. How much time will the tow pipes together take to empty the tank?

A

8 min

B

133 min

C

30 min

D

38 min

Text Solution

Verified by Experts

The correct Answer is:
B
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