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CEMC Cayley, 2024

Algebra Difficulty 1.1 Junior Find the answer Canada

At Wednesday’s basketball game, the Cayley Comets scored $90$ points.

At Friday’s game, they scored $80\%$
as many points as they scored on Wednesday.

How many points did they score on Friday?

Pick one

Solution

On Friday, the Cayley Comets scored $80\%$ of $90$ points.

This is equal to $\frac{80}{100} \times 90 = \frac{8}{10} \times 90 = 8 \times 9 = 72$ points.

Alternatively, since $80\%$ is
equivalent to $0.8$ , then $80\%$ of $90$ is equal to $0.8 \times 90 = 72$ .

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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.