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THE BEST ANSWER IS A. THE AVERAGE SPEED IS EQUAL T...
THE BEST ANSWER IS A. THE AVERAGE SPEED IS EQUAL TO
PROBLEMS PRACTICE PHẦN 10 PPSX
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30. The best answer is A. The average speed is equal to: (Total distance)/(Total time) = (60 x 1/3 + 90 x 2/3)/1 = 80 Km/h.
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30.
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PROBLEMS PRACTICE PHẦN 10 PPSX