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Practice mode Time and Distance

A bus covers 2/5 of a journey at 30 km/h and the remaining part at 45 km/h. What is its average speed for the entire journey?

Correct answer A. 37.5 km/h

Explanation

Take the journey as 150 km: 60 km at 30 km/h takes 2 hours and 90 km at 45 km/h takes 2 hours. Average speed = 150 / 4 = 37.5 km/h.

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