- A7 p.m.
- B8 p.m.
- C11 p.m.
- D9 p.m.
Step-by-Step Solution
per hour; by 3 p.m. . The other half took 4 h → net , so C . From 1 p.m. with C: net → 8 h → 9 p.m.
Answer: D) 9 p.m.
Pipe A fills a tank in 6 hours and pipe B in 12 hours. They were opened on the empty tank at 1 p.m.; an outlet C was opened at 3 p.m., and the tank was full at 7 p.m. Had C been opened at 1 p.m. along with the others, when would the tank have been full?
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