- A4 h
- B6 h
- C6.4 h
- D8 h
Step-by-Step Solution
Net with outlet . In 4 h: . The inlet alone fills in h. Total 6.4 h.
Answer: C) 6.4 h
A tank's inlet fills it in 4 hours. When the inlet was turned on, the outlet was accidentally left open, and the empty tank was full only after 10 hours. Had the outlet been closed after the first 4 hours, when would the tank have been full?
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