- A11.25
- B30
- C15
- D22.5
Step-by-Step Solution
Combined rate = 1/15 + 1/45 = 3/45 + 1/45 = 4/45 tank per minute, so time = 45/4 = 11.25 minutes.
Answer: A) 11.25
Two motors pump water into a temple tank in Madurai: one alone needs 15 minutes, the other alone 45 minutes. Working together, how long do they take? (minutes)
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