i am unable to understand this question?
A boat going upstream takes 8 hrs 24 min to cover a certain distance, while it takes 5 hrs to cover 5/7 of the same distance running downstream. Then what is the ratio of the speed of boat to speed of water current?
i am unable to understand this question.
The speed of Boat in Still water is 40 Km/hr and speed of the stream is 20 Km/hr. The distance between Point A and Point B is 480 Km. The boat started traveling downstream from A to B, in the midway, it is powered by an Engine due to which speed of the Boat increased. Now Boat reached Point B and started back to point A with help of the same engine. It took 19 hours for the entire journey. Then with the help of the engine, the speed of the boat increased by how many Km/hr?