Pipe A can fill in 20 minutes and Pipe B in 30 mins
and Pipe C can
empty the same in 40 mins.If all of them work
together, find the time
taken to fill the tank
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Answer Posted / jayashree
1/20 +1/30 -1/40
30+20/600 -1/40
1/12 -1/40
7/120
then d answer ll be 120/7 this can be returns as 17 1/7mins
| Is This Answer Correct ? | 55 Yes | 2 No |
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