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:A
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