A train went 300 km from City X to City Y at an average speed of 100 km/h. At what speed did it travel on the way back if its average speed for the whole trip was 120 km/h?

1. A train went 300 km from City X to City Y at an average speed of 100 km/h. At what speed did it travel on the way back if its average speed for the whole trip was 120 km/h?

[Assistant Programmer 2016 [MCQ] : 2016]

1. 120 km/h

2. 125 km/h

3. 130 km/h

4. 150 km/h

Answer

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