Question
A class of 39 students has an average test score of 24. When the score of the topper is added, the average score of the group increases to 24.25. What is the score of the topper?
Solution
Total score of the 39 students = 24 X 39 = 936 Total score of 40 students (39 students plus the topper) = 40 X 24.25 = 970 So, score of the topper = 970 - 936 = 34
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