engineering recuitment NMDC Maintenance Assistant Fitter 2021 Mock Test Quantitative Aptitude Average
A person covers half of his journey by car at 50 km/h, half of the remainder by Bike at 60 km/h and the rest by train at 75 km/h. Find his average speed for the entire journey.
1
440/7 km/h
2
500/7 km/h
3
400/7 km/h
4
300/7 km/h