Mathematics · Data Interpretation
Based on demographic data for Class B which has 76 total students, the average age of students in Class B is 13.5 years. If only students above the average age participated in a sports event and 25% of the total students were below the average age, find the number of students from Class B who participated in the event.
- 145
- 257✓
- 336
- 448
Correct answer
57
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