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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?
8 min 15 sec
7 min 15 sec
6 min 15 sec
5 min 15 sec
Part filled in 3 minutes = 3∗(1/12+1/15)=3∗960=920 Remaining part =1−9/20=11/20 =>1/15:11/20=1:X =>X=11/20∗15/1 =>X=8.25mins
By: MIRZA SADDAM HUSSAIN ProfileResourcesReport error
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