engineering recuitment DRDO Technician A 2022 Mock Test Series (Tier I) Quantitative Aptitude Speed Time and Distance
A train travels at a speed of 40 km/hr and another train at a speed of 20 m/s. What is the ratio of speed of the first train to that of the second train?
1
2 : 1
2
5 : 9
3
5 : 3
4
9 : 5