defence exam CISF Head Constable Ministerial (HCM) & ASI Steno Mock Test Series Quantitative Aptitude Speed Time and Distance Average Speed
Choose the most appropriate answer.
One third of the journey is covered at the rate of 30 km/hr, one fourth of the remaining is covered at 40 km/hr and remaining is covered at 50 km/hr. What is the average speed of the whole journey?
1
45 km/hr
2
40 km/hr
3
38 km/hr
4
39.5 km/hr