- A19 minutes
- B19 1/3 minutes
- C20 minutes
- D18 minutes
Step-by-Step Solution
Each 2-minute cycle fills . After 9 cycles (18 min): . Minute 19 is A's turn and adds , exactly the rest: 19 minutes.
Answer: A) 19 minutes
Pipe A fills a tank in 16 minutes and pipe B in 24 minutes. They are opened alternately for 1 minute each, starting with A. How long does the tank take to fill?
Class 8Pipes and CisternsDirect and Inverse Proportions
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