- A6 hours
- B5 hours
- C4 hours
- D5 3/5 hours
Step-by-Step Solution
2 h at net . Then the drain is closed: h. Total 5.6 h = 5 h 36 min.
Answer: D) 5 3/5 hours
A tank has a tap that fills it in 4 hours and a drain that empties it in 5 hours. If the drain is opened by mistake for the first 2 hours, how long does filling take?
Class 8Leaks and Changing PipesDirect and Inverse Proportions
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