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Algebra Difficulty 1.1 Junior Find the answer Canada

There are 160 students in grade 8 at Murray Public School. If exactly 10% of these students are on the school’s chess team, how many grade 8 students are on the team?

Pick one

Solution

There are only two different products of two positive integers whose result is 14.

These are $2\times7$ and $1\times14$ .

Since the two integers must be between 1 and 10, then the product must be $2\times7$ .

The sum of these two integers is $2+7=9$ .

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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.