A student has scores of 82, 88, and 90 on three math tests. What is the minimum score the student must get on the fourth test to have an average of at least 87?

A 85

B 86

C 87

D 88

✓ Correct Answer: Option D

Let x be the score on the fourth test. The sum of scores divided by 4 must be at least 87: (82 + 88 + 90 + x) / 4 ≥ 87. This simplifies to (260 + x) / 4 ≥ 87. Multiply by 4: 260 + x ≥ 348. Subtract 260: x ≥ 88. The minimum score is 88.

💡 Why is D) the correct answer?

The correct answer to the question "A student has scores of 82, 88, and 90 on three math tests. What is the minimum score the student must get on the fourth test to have an average of at least 87?" is Option D: 88.

The other options — A) 85, B) 86, C) 87 — are incorrect for this GED Exam Prep question. As explained above: Let x be the score on the fourth test. The sum of scores divided by 4 must be at least 87: (82 + 88 + 90 + x) / 4 ≥ 87. This simplifies to (260 + x) / 4 ≥ 87. Multiply by 4: 260 + x ≥ 348. Subtract 2…

📚 About This GED Exam Prep Practice Question

This 3-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.

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A student has scores of 82, 88, and 90 on three math tests. What is the minimum score the student must get on the fourth test to have an average of at least 87?

✓ Correct Answer: Option D

📚 About This GED Exam Prep Practice Question

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