Question 4
EasyOriginal questionIn a 1,000 m race A beats B by 100 m, and in another 1,000 m race B beats C by 50 m. The runners keep the same speeds in every race.
By how many metres would B beat C in a 400 m race?
Show the answer and explanation
CorrectNot quiteAnswer B
Correct answer: B
Explanation
C runs 950 m for every 1,000 m that B runs, a margin of 5%.
5% of 400 m is 20 m.
Worth noting
50 m keeps the 1,000 m margin; it scales with the length of the race.
- Concept
- The margin in a different race
- Typical timeTypical
- 90 s
- Your timeYours
- —
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Ten questions from Races & Games, at your own pace.