two pipes a and B can separately fill a tank in 10 and 15 minutes respectively. a person opens both the pipes together, when the tank should have been full, he finds the drain pipe was open. he then closes the drainpipe, in another 2 minutes the tank was full. how much time is required for the waste pipe to empty the tank when it is full?
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Answered by
0
Capacity of the tank =(12 x 13.5) liters =162 liters. Number of buckets needed = 162/9 =18.
Step-by-step explanation:
Answered by
2
Answer:
8.57min
Step-by-step explanation:
1/10 + 1/15 = 1/6 x 3 = 1/2
1 - 1/2 = 1/2
1/10 + 1/15 - 1/x = 1/2
x = 8.57 min
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