One Train Travels 200m From A To B With 70 Km/Ph And Returns To A With 80kmph, What Is The Average Of Their Speed?
Answer / Mukund Hans
The total distance traveled is 400 meters (200 + 200). To find the average speed, we use the formula: average_speed = total_distance / total_time. Since the train moves at two different speeds for equal distances, we can calculate the time taken for each leg and then take the average of those times. Time1 = distance1 / speed1 = 200 / 70 = 2.857 hours; Time2 = distance2 / speed2 = 200 / 80 = 2.5 hours. The average speed is (Time1 + Time2) / 2 = (5.357 + 2.5) / 2 = 3.928 km/h.
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