railway RRB NTPC Mock Test Series 2024-25 (CBT 1 + CBT 2) Quantitative Aptitude Speed Time and Distance Average Speed
A person makes four journeys of the same distance. In the first journey its speed was 80 km/hr and in each subsequent journey its speed was half of the previous journey. What is the average speed of the person in these four journeys?
1
64/3 km/hr
2
24 km/hr
3
22 km/hr
4
43/2 km/hr