railway RRB NTPC Mock Test Series 2024-25 (CBT 1 + CBT 2) Quantitative Aptitude Speed Time and Distance Boat and River
In still water, Rajni can row 135 km in 7.5 hours, while she can row 48 km upstream in 4 hours. What is the speed of the current in km/hr?
1
4 km/hr
2
4.5 km/hr
3
5 km/hr
4
6 km/hr