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Geometry Difficulty 1.4 Junior Find the answer Canada

For the points in the diagram, which statement is true?

IMG0

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Solution

In $1.00 worth of dimes, there are$ $\dfrac{\$1.00}{\$0.10}=10$ $dimes. In$ 1.00 worth of quarters, there are $\dfrac{\$1.00}{\$0.25}=4$ quarters. The jar contains 10 dimes and a total of $10+4=14$ coins. If Terry randomly removes one coin from the jar, the probability that it is a dime is $\dfrac{10}{14}=\dfrac{5}{7}$ .

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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.