railway RRB NTPC Mock Test Series 2024-25 (CBT 1 + CBT 2) Quantitative Aptitude Speed Time and Distance Average Speed
Find the average speed of a boy if he walks 1/3rd distance with a speed of 2 m/sec and rides a bike to cover the remaining distance with a speed of 12 m/s. The total distance is 1.44 km.
1
18.4 km/hr
2
20.5 km/hr
3
15.8 km/hr
4
16.2 km/hr