railway RPF Constable Mock Test Series 2024 Quantitative Aptitude Speed Time and Distance Boat and River
A boat's speed in still water is 45 km/h, while the river is flowing at a speed of 15 km/h. The time taken to cover a certain distance upstream is 9 h more than the time taken to cover the same distance downstream. Find the distance (in km).
1
540
2
320
3
480
4
450