1.

Two taps A and B can fill a tank in 10 minutes and 15 minutes respectively. In what time will the tank be full if tap B was opened 3 minutes after tap A was opened ?A. 6 minutes 12 secondsB. 7 minutes 12 secondsC. 8 minutes 12 secondsD. 9 minutes 12 seconds

Answer» Correct Answer - B
Find the work done by A in 3 minutes.


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