- A39 minutes
- B53 minutes
- C46 minutes
- D60 minutes
Step-by-Step Solution
7 min of . Left at net : 39 min. Total 46 minutes.
Answer: C) 46 minutes
Pipes A and B fill a tank in 36 and 45 minutes. Pipe C empties it in 30 minutes. A and B are opened; after 7 minutes C is also opened. How long from the start until the tank is full?
Class 8Leaks and Changing PipesDirect and Inverse Proportions
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