railway RRB NTPC Mock Test Series 2024-25 (CBT 1 + CBT 2) Quantitative Aptitude Speed Time and Distance Partial Speed
From places A to B, which are 50 km apart, T covers half of the distance in 20 minutes. What should be his speed (in km/h) in the second half so that his average speed from A to B is 80 km/h?
1
57.8
2
87.5
3
75.8
4
85.7