A boat can row 15 km/h in still water. If the river current flows at 5 km/h, find the total time taken by the boat to row 40 km upstream. MCQ with Answer and Explanation
Two trains of equal length cross a pole in 10 seconds and 20 seconds respectively. If the length of each train is 100 meters, find the time taken by them to pass each other when running in opposite directions.
A generic bullet train covers a distance between two stations in 2 hours 30 minutes at a speed of 120 km/h. How much time will it take to cover the same distance at a speed of 150 km/h?
The speed of a boat in still water is 14 km/h and the speed of the current is 4 km/h. How much time will the boat take to cover a distance of 72 km downstream?
Explanation:
Downstream speed = Speed in still water + Speed of current = 14 + 4 = 18 km/h. Time taken = Distance / Downstream speed = 72 / 18 = 4 hours.
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