engineering recuitment MAHATRANSCO AE Electrical Mock Test Quantitative Aptitude Speed Time and Distance Boat and River
A man is swimming to a certain point and back to the starting point in a river that flows at 3.5 km/h. His swimming speed in still water is 8.5 km/h. Find his average speed.
1
120/17 km/h
2
117/17 km/h
3
17 km/h
4
125/17 km/h
5
None of these