Q: With an average speed of 45 km/h, a train reaches its destination on time. If it goes with an average speed of 30 km/h, it is late by 15 minute. The total journey is:
- A. 20.5 km
- B. 30.5 km
- C. 40.5 km
- D. 22.5 km
Correct Answer:
Option D -
Explanations:
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