EduFarming
Your list · 0हिं

Type at least two letters. Press Esc to close.

↑↓ navigate↵ openTAB cycle filter

Races & Games · Question 6 of 73

What is the ratio of A's speed to B's in these races?

Question 6

EasyOriginal question

In 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.

What is the ratio of A's speed to B's in these races?

Options for question 6

Show the answer and explanation
CorrectNot quiteAnswer D

Correct answer: D

Explanation

  1. While A runs 1,000 m, B runs 900 m.

  2. 1,000:900=10:91{,}000 : 900 = 10 : 9.

Worth noting

9:109 : 10 is B's speed to A's.

Concept
Speeds from a winning margin
Typical time
90 s
Your time
—
The rule this testsBeating by a distance or a time
Practise this chapter →

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

Practise this chapter →

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

Practise this chapterAll 73 questions in Races & GamesRevise the notes for Races & Games