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Races & Games · Question 20 of 73

What is B's speed in this 200 m race?

Question 20

MediumOriginal question

In a 200 m race, A finishes in 25 seconds and beats B by 40 m.

What is B's speed in this 200 m race?

Options for question 20

Show the answer and explanation
CorrectNot quiteAnswer C

Correct answer: C

Explanation

  1. When A finishes, B has run 200−40=160200 - 40 = 160 m in the same 25 seconds.

  2. 16025=6.4\frac{160}{25} = 6.4 m/s.

Worth noting

8 m/s is A's speed.

Concept
A speed from a winning margin
Typical time
120 s
Your time
—
The rule this testsBeating by a distance or a time
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Ten questions from Races & Games, at your own pace.

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Ten questions from Races & Games, at your own pace.

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