defence exam CRPF Para Medical Staff Mock Test Quantitative Aptitude Speed Time and Distance Average Speed
A train travels distances 20 km, 40 km and 60 km at speeds of 50 km/h, 60 km/h and 90 km/h respectively. What is the average speed of the train in km/h correct to one decimal place?
1
65.6
2
60
3
69.2
4
67.8