A class has 3 students who scored 90 on a test, 5 students who scored 80, and 2 students who scored 60. What is the average (mean) score for the class?

A 76.0

B 78.0

C 80.0

D 82.0

✓ Correct Answer: Option B

Calculate the total points: (3*90) + (5*80) + (2*60) = 270 + 400 + 120 = 790. The total number of students is 3 + 5 + 2 = 10. The average is 790 / 10 = 79.0.

💡 Why is B) the correct answer?

The correct answer to the question "A class has 3 students who scored 90 on a test, 5 students who scored 80, and 2 students who scored 60. What is the average (mean) score for the class?" is Option B: 78.0.

The other options — A) 76.0, C) 80.0, D) 82.0 — are incorrect for this GED Exam Prep question. As explained above: Calculate the total points: (3*90) + (5*80) + (2*60) = 270 + 400 + 120 = 790. The total number of students is 3 + 5 + 2 = 10. The average is 790 / 10 = 79.0.

📚 About This GED Exam Prep Practice Question

This 4-level GED Exam Prep question from the Mathematical Reasoning topic is part of BrainForge Quiz's free exam preparation library. Each question includes the correct answer and a detailed explanation to help you understand the underlying concept, not just memorize the answer.

How to use this page: Read the question above, consider all four options (A through D), then check the highlighted correct answer and explanation. For active timed practice, start a free GED Exam Prep practice test or use flashcards for spaced repetition review.

Practice GED Exam Prep Quizzes → Browse All Questions Study Flashcards

A class has 3 students who scored 90 on a test, 5 students who scored 80, and 2 students who scored 60. What is the average (mean) score for the class?

✓ Correct Answer: Option B

📚 About This GED Exam Prep Practice Question

Related GED Exam Prep Questions