state gov UP Police Assistant Operator (Radio Cadre) Mock Test Quantitative Aptitude Speed Time and Distance Average Speed
The distance between two stations A and B is 1 km. A train covers the journey from A to B at 60 km/h and returns to A at a uniform speed of 40 km/h. The average speed of the train in km/h is:
1
84
2
48
3
100
4
20