Speed of a boat in still water is 8 km/h. If the speed of stream is 2 km/h, then how much distance can the boat travel in two hours going up stream?
Answer & explanation
Correct answer: option 4
Speed of a boat in still water = 8 km/h
The speed of stream = 2 km/h
Speed of a boat in upstream = 8 – 2 = 6 km/h
Distance = speed × time = 6 × 2 = 12 km