Question
A vehicle travels 100 km at a speed of 50 km/h and 200
km at a speed of 75 km/h. What is the average speed for the entire trip?Solution
Time for 100 km = 100 / 50 = 2 hours Time for 200 km = 200 / 75 ≈ 2.67 hours Total distance = 100 + 200 = 300 km Total time = 2 + 2.67 ≈ 4.67 hours Average speed = 300 km / 4.67 hours ≈ 64.2 km/h The average speed for the entire trip is approximately 64.2 km/h.
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