state gov Kolkata Police SI Mock Test 2023 Quantitative Aptitude Speed Time and Distance Relative Speed
A car starts from a place with a speed of 30 km/h. After 3 hours, another car starts in the same direction with a speed of 60 km/h, After how many hours will the second car overtake the first car?
1
2 hrs.
2
3 hrs.
3
4 hrs.
4
5 hrs.