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1. |
A bus is moving with a speed of 30 km/hr ahead of a car with a speed of 50km/hr. How many kilometres apart are they if it takes 15 minutes for the car to catch up with the bus? |
A. | 5 km |
B. | 7.5 km |
C. | 12.5 km |
D. | 15 km |
Answer» B. 7.5 km | |