- A125 min
- B12.5 min
- C8 min
- D20 min
Step-by-Step Solution
Flow ∝ area ∝ , so the wider pipe carries times as much: min. (20 min divides by 2.5 only.)
Answer: C) 8 min
A pipe of radius 1 cm fills a tank in 50 minutes. How long would a pipe of radius 2.5 cm take, if water flows at the same speed through both?
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