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Algebra Difficulty 1.2 Junior Find the answer Canada

Points $P$ , $Q$ , $R$ , and $S$ are on a number line, as shown.The ratio of lengths $PR:QS$
is

Pick one

Solution

From the diagram, $PR = 10 - 3 = 7$ and $QS = 17 - 5 = 12$ and so $PR : QS = 7:12$ .

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Source: CEMC, University of Waterloo, licensed CC-BY-NC-4.0. Statement reproduced verbatim; metadata (topic, difficulty) added by this project.