A car covers a distance of 300 km at a uniform speed. If the speed is scaled up by 15 km/h, the trip takes exactly 4 hours. Find the original speed. MCQ with Answer and Explanation
The speeds of two cars are in the ratio 5 : 3. If they cover the same total distance, and the slower car takes 2.5 hours, how much time does the faster car take?
Explanation:
Ratio of speeds = 5:3, so ratio of times taken = 3:5. The slower car corresponds to 5 parts = 2.5 hours => 1 part = 0.5 hours. Time for the faster car = 3 parts = 3 * 0.5 = 1.5 hours.
No comments yet. Be the first to start the discussion!