- A12 h
- B4 1/2 h
- C8 h
- D10 h
Step-by-Step Solution
Small pipe in 6 h: of the tank. Big pipe fills the other in h. Total h.
Answer: D) 10 h
An empty tank is filled by the small pipe for the first 6 hours. The small pipe is then removed and the big pipe fills the rest, as shown. How many hours after the start is the tank full?
Class 8Leaks and Changing PipesDirect and Inverse Proportions
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