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Two taps A and B can fill a tank in 15 minutes and 20 minutes respectively.If both the taps are opened simultaneouly, then in how much time can the em

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Two taps A and B can fill a tank in 15 minutes and 20 minutes respectively.If both the taps are opened simultaneouly, then in how much time can the empty tank be filled ?
A. `8(4)/(7)`hours
B. 8 minutes
C. `8(4)/(7)` minutes
D. 16 minutes
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Correct Answer - C
Find the part of the tank filled by A and B together in 1 minute.
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