A swimmer can swim downstream at 13 km/h and upstream at 7 km/h. Find the speed of swimmer in still water.
A6 km/h
B20 km/h
C10 km/h
D8 km/h
A6 km/h
B20 km/h
C10 km/h
D8 km/h
Related Questions:
A man rows 750 m in 600 seconds against the stream and returns in minutes. Its rowing speed in still water is (in km/ hr).