A boat can cover a distance of 56 km downstream in 3.5 hours. The ratio of the boat in still water and the speed of stream is 3 : 1. How much time (in hours) will the boat take to cover a distance of 41.6 km downstream ?
Answer & explanation
Correct answer: option 3
We have,
A boat can cover a distance of 56 km downstream in 3.5 hours
The ratio of the boat in still water and the speed of the stream = 3 : 1
Speed = Distance/Time
According to the question,
Speed of the boat downstream = 56/3.5 = 16 km/h
Now, To cover 41.6 downstream it will take = 41.6/16 = 2.6 hours