SSC Delhi Police Head Constable (Ministerial) 2025 Mock Test (New) Quantitative Aptitude Speed Time and Distance Boat and River
The speed of a boat is 10 km/h in still water. It covers a distance of 90 km in 15 hours going upstream. What is the speed of the stream?
1
6 km/h
2
3 km/h
3
5 km/h
4
4 km/h