- A3
- B7
- C2.5
- D3.5
Step-by-Step Solution
Moving towards each other, relative speed = 45 + 60 = 105 km/h; time = 315 / 105 = 3 hours.
Answer: A) 3
Nagpur and Raipur are 315 km apart by rail. A goods train leaves Nagpur for Raipur at 45 km/h, and at the same moment an express leaves Raipur for Nagpur at 60 km/h. How many hours later do they cross each other?
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