railway RPF Constable Mock Test Series 2024 Quantitative Aptitude Speed Time and Distance Boat and River
A boat can travel 18 km in 3 hours while going upstream, and 40 km in 4 hours while going downstream. What is the speed of the boat in still water?
1
6 km/h
2
8 km/h
3
10 km/h
4
9 km/h