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Physics, 31.01.2021 23:10 mariana2006

2- A car spends two hours driving at 20 km/h, and then an hour driving at 50 km/h. What is the average speed of the car?
A. 50 km/h
B. 45 km/h
C. 35 km/h
D. 30 km/h
Please I need the answer of this

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