Taps A and B can fill a bucket in 12 minutes and 15 minutes respectively. If both are opened and A is closed after 3 minutes, how much further time would it take for B to fill the bucket?

Taps A and B can fill a bucket in 12 minutes and 15 minutes respect

1.	Taps A and B can fill a bucket in 12 minutes and 15 minutes respectively. If both are opened and A is closed after 3 minutes, how much further time would it take for B to fill the bucket?
A.	8 min 15 sec
B.	7 min 15 sec
C.	6 min 15 sec
D.	5 min 15 sec
Answer» B. 7 min 15 sec

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Taps A and B can fill a bucket in 12 minutes and 15 minutes respectively. If both are opened and A is closed after 3 minutes, how much further time would it take for B to fill the bucket?

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