insurence exam LIC Assistant Mock Test Series Quantitative Aptitude Speed Time and Distance Boat and River
A boy covers a certain distance to a point upstream and returns to the initial point in a river. If the speed of the boat in still water is 15 km/hr and the speed of the stream is 7 km/hr, then find the average speed of the whole journey.
1
10.21 km/hr
2
13.43 km/hr
3
12.58 km/hr
4
11.73 km/hr
5
None of these