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Two taps A and B can fill a tank in 10 h...

Two taps A and B can fill a tank in 10 hours and 12 hours respectively. If the two taps are opened at 10 a.m., then at what time (in p.m.) should the tap A be closed to completely fill the tank at exactly 4 p.m.?

A

2

B

3

C

1

D

`1:30`

Text Solution

Verified by Experts

The correct Answer is:
B
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