1.

 Two taps A and B can fill a tank in 25 min and 20 min, respectively. But taps are not opened properly so the taps A and B allow 5/6th and 2/3rd part of water, respectively. How long will they take to

A. 12 min
B. 13 min
C. 14 min
D. 15 min
Answer» B. 13 min


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