Teaching Rajasthan Basic Computer Instructor 2021 Mock Test Quantitative Aptitude Speed Time and Distance Relative Speed
A fast train takes 3 hours less than a slow train for a journey of 900 km. If the speed of the slow train is 10 km/hr less than that of the fast train, then what is the speed of the fast train?
1
40 km/hr
2
50 km/hr
3
60 km/hr
4
30 km/hr