railway RRB Group D Mock Test Series 2024-25 Quantitative Aptitude Speed Time and Distance Boat and River
A person can row a yacht along the stream at a speed of 9 km/h and against the stream at a speed of 7 km/h. The speed of the stream is:
1
\({{3} \over 4}\) km/h
2
2 km/h
3
1.5 km/h
4
1 km/h