- A12 h
- B6 h
- C8 h
- D
Step-by-Step Solution
Lowest third at h. Middle third at : 2 h. Top third at : 4 h. Total h. (12 h has both outlets working from the start.)
Answer: D)
An inlet fills a tank in 4 hours. Two outlets sit at one-third and two-thirds of the height, and each drains water at a rate that would empty the full tank in 12 hours, but only while the water is above it. How long does the empty tank take to fill?
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