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A tank can be filled by a tap in 20 minu...

A tank can be filled by a tap in 20 minutes and by another tap in 60 minutes. Both the taps are kept open for 10 minutes and then the first tap is shut off. After this, the tank will be completely filled in

A

10 minutes

B

12 minutes

C

15 minutes

D

20 minutes

Text Solution

Verified by Experts

The correct Answer is:
D
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