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Practice mode Time and Distance

A van travels for 2 hours at 45 km/h and then for 3 hours at 60 km/h. What is its average speed for the whole journey?

Correct answer B. 54 km/h

Explanation

Total distance = 90 + 180 = 270 km in 5 hours. Average speed = 270 / 5 = 54 km/h; averaging the two speeds wrongly gives 52.5.

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