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A person walks 2 hours at 4 km/h and then rests for 1 hour. Average speed over the 3 hours?

A8/3 km/h
B3 km/h
C4 km/h
D2 km/h
Answer & Solution
Correct answer: A. 8/3 km/h
The distance is 8 km over 3 hours in total, so the average is 8/3 km/h.
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