The speeds of two bodies are in the ratio 5 : 6. If they clear the same sector distance, and the slower car takes 3 hours, how much time does the faster car take?
Explanation:
Ratio of speeds = 5:6, so ratio of times taken = 6:5. Slower car takes 6 parts = 3 hours => 1 part = 0.5 hours. Time for faster car = 5 parts = 5 * 0.5 = 2.5 hours.
Explanation:
Time for first section = 120 / 40 = 3 hours. Time for second section = 160 / 80 = 2 hours. Total distance = 280 km, Total time = 5 hours. Average speed = 280 / 5 = 56 km/h.
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