Tap A can fill a tank in 20 hours and tap B can fill the same tank in 30 hours. If both taps are opened together, then how much time will be taken to fill the tank?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e 12 hours
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Understanding Tricks |
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Application
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Now Total efficiency together = 3 + 2 = 5 unit So Time = 60/5 = 12 hours |