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Two pipes can fill a tank in 10 and 12 hours respectively
while third pipe will make the tank empty in 20 hours. If
all three pipes operate simultaneously, in how many hours
the tank will be filled ?
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Answer Posted / sabarish
1/10 + 1/12 - 1/20
solving we get... 7.5 hrs
| Is This Answer Correct ? | 28 Yes | 9 No |
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