A motorcycle travels from terminal A to B at 40 km/h and returns at 60 km/h. What is the average speed for the round journey? MCQ with Answer and Explanation
Two passenger trains of equal layout lengths cross a station pole in 15 seconds and 30 seconds respectively. If each train length measures 150 meters, find the time parameter required to pass each other completely when tracking in opposite directions.
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.
A car travels a distance of 240 km at a certain speed. If the speed is increased by 10 km/h, it takes 4 hours for the journey. Find the original speed.
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