2025/26 AHSMC Part 1 Problem 1

Problem 1 of 16

Two sections of a Math $30$ class take an exam. The maximum possible score is $20$ points. The average score of the $10$ students in the first section is $15$ points. The average score of the $20$ students in the second section is $18$ points. What is the overall average score of all $30$ students combined?

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Solution

The $10$ students in the first section scored $150$ points in total and the $20$ students in the second section scored $360$ points. The overall average is $\frac{150+360}{30} = 17.$ The answer is (D).

University of Alberta

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