SSC NTA Delhi University Non-Teaching 2021 Mock Test Quantitative Aptitude Speed Time and Distance Relative Speed
To travel 660 km, an Express train takes 10 hours more than Rajdhani. If however, the speed of the Express train is doubled, it takes 7 hours less than Rajdhani. The speed of Rajdhani is
1
38.8 km/hr
2
16.2 km/hr
3
50.1 km/hr
4
27.5 km/hr