state gov UP Police Constable Mock Test Series 2025 Quantitative Aptitude Speed Time and Distance Boat and River
A boat goes 30 km upstream and 44 km downstream in a total of 10 hours. It also goes 40 km upstream and 55 km downstream in a total of 13 hours. The speed of the stream is:
1
2 km/h
2
3 km/h
3
5 km/h
4
4 km/h