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AssignmentMultiple Choice

Understanding Speed

Question 4 • FL-1205010-M/J Grade 6 Mathematics A-CR

Yohan Blake ran the 2012 Olympic 200-meter race in 19.44 seconds. Compare his speed in that race to his speed in the 100-meter race, which he finished in 9.75 seconds. Round to the nearest hundredth.

Answer
A
10.29 meters per second and 10.26 meters per second
B
10.49 meters per second and 10.36 meters per second
C
10.59 meters per second and 10.46 meters per second
D
10.69 meters per second and 10.56 meters per second

Explanation

Speed is distance divided by time. For the 200-meter race, 200 ÷ 19.44 ≈ 10.29 meters per second; for the 100-meter race, 100 ÷ 9.75 ≈ 10.26 meters per second. Therefore, choice A, “10.29 meters per second and 10.26 meters per second,” is correct.

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