- A3.5
- B4
- C3
- D7
Step-by-Step Solution
Moving towards each other, they close the gap at 60 + 70 = 130 km/h. Time = 455 ÷ 130 = 3.5 hours.
Answer: A) 3.5
Stations A and B are 455 km apart. At 6 a.m. one train leaves A for B at 60 km/h and another leaves B for A at 70 km/h. How many hours later do they meet?
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