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Practice mode Time and Distance

Nadia drives 120 km to her parents’ house at 40 km/h and returns along the same road at 60 km/h. What is her average speed for the whole trip?

Correct answer A. 48 km/h

Explanation

For equal distances, average speed = 2xy/(x + y) = 2 × 40 × 60 / 100 = 48 km/h. Total 240 km in 3 + 2 = 5 hours confirms 48 km/h.

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