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A train covered first 120 km at a speed of 20 km per hour and then covered the remaining 180 km at a speed of 45 km per hour. Find its average speed |
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Answer» Total distance = 120 + 180 = 300 KM. Time taken for the FIRST 120 km = 120/20 → 6 hrs. Time taken for the next 180 km = 180/45 → 4 hrs. Total time taken = 6 + 4 = 10 hrs. Average SPEED =Total Distance Travelled/Total Time Taken = 300/10 = 30 km/hr.Step-by-step explanation: |
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