railway RRB NTPC Mock Test Series 2024-25 (CBT 1 + CBT 2) Quantitative Aptitude Speed Time and Distance Average Speed
A car travels 1/3 of the distance on a straight road with a speed of 10 km/h, next 1/3 with a speed of 20 km/h and last 1/3 with 60 km/h. What would be the average speed of the car for the whole journey?
1
10 km/h
2
20 km/h
3
15 km/h
4
18 km/h