state gov DSSSB Junior Assistant, Steno and LDC Mock Test 2023 - 24 Quantitative Aptitude Speed Time and Distance Average Speed
A car covers one-fourth of a distance at a speed of 100 km/hr, half of the remaining distance at a speed of 60 km/hr and the remaining distance at a speed of 100 km/hr. If the time taken to complete the journey is 10 hours, then what is the average speed of the car?
1
80 km/hr
2
72 km/hr
3
75 km/hr
4
64 km/hr