A swimmer’s speed in the direction of flow of river is 16 km h-1. Against the direction of flow of river, the swimmer’s speed is 8 km h-1. The swimmer’s speed in still water and the velocity of flow of the river respectively are……….
A. 12 km h-1, 4 km h-1
B. 4 km h-1, 12 km h-1
C. 24 km h-1, 16 km h-1
D. 16 km h-1, 24 km h-1
Answer:A
A swimmer’s speed in the direction of flow of river is 16 km h-1. Against the direction of flow of river, the swimmer’s speed is 8 km h-1. The swimmer’s speed in still water and the velocity of flow of the river respectively are……….
A. 12 km h-1, 4 km h-1 B. 4 km h-1, 12 km h-1 C. 24 km h-1, 16 km h-1 D. 16 km h-1, 24 km h-1