- A20.4
- B42.5
- C17
- D22
Step-by-Step Solution
Combined rate = 1/34 + 1/51 = 3/102 + 2/102 = 5/102 per minute, so time = 102/5 = 20.4 minutes.
Answer: A) 20.4
Filling a water tanker takes hose P 34 minutes and hose Q 51 minutes. Using both hoses together, how many minutes will it take?
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