- AAfter 24 hours
- BAfter 16 hours
- CAfter 12 hours
- DAfter 17 hours
Step-by-Step Solution
Each 2-hour pair adds . After 8 pairs (16 h): . The inlet's next hour adds : full at 17 h.
Answer: D) After 17 hours
An inlet fills a tank in 3 hours and an outlet empties it in 4. They are opened alternately for 1 hour each, inlet first. When is the empty tank full?
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