state gov Chhatisgarh (CG) Police Constable Mock Test 2023-24 Quantitative Aptitude Speed Time and Distance Boat and River
The speed of a ship in still water is 9 km/hr. If ship covered 36 km in 3 hrs along the stream. The speed of upstream is:
1
3 km/hr
2
12 km/hr
3
6 km/hr
4
5 km/hr