- A30 min
- B36 min
- C18 min
- D45 min
Step-by-Step Solution
Take the tank as LCM(30, 45, 36) = 180 units. A: 6, B: 4, C: −5 units/min. Net 5 units/min → min.
Answer: B) 36 min
Inlets A and B fill a tank in 30 and 45 minutes, and outlet C empties it in 36 minutes. All three are opened on an empty tank. When will it be full?
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