1. A pipe of 2 inch diameter fills a water tank in one hour. If the diameter of the pipe is 4 inch in what time will the pipe fill the same tank?

[IFIC Bank MTO-2013 : 2013]

1. 10 minutes

1

2. 15 minutes

2

3. 30 minutes

3

4. 45 minutes

4

5. None of these

5
Answer
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