- A7.5 h
- B5 h
- C4.5 h
- D6.5 h
Step-by-Step Solution
Net with the leak takes 4.5 h. The last takes h. Total 6.5 h. (7.5 h keeps the leak throughout.)
Answer: D) 6.5 h
An inlet fills a tank in 5 hours. A leak that empties the full tank in 15 hours is noticed and plugged when the tank is three-fifths full. How long does the empty tank take to fill?
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