- A81 min
- B16 min
- C24 min
- D54 min
Step-by-Step Solution
Area ∝ diamete, so the 3 cm pipe carries times as much water. Time = min. (24 min uses the diameter ratio instead of its square.)
Answer: B) 16 min
A pipe of diameter 2 cm fills a tank in 36 minutes. How long would a pipe of diameter 3 cm take, if flow is proportional to the pipe's cross-section area?
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