If the nth term of a sequence is given by a_n = 3n - 5, what is the sum of the 5th and 7th terms?

A 22

B 26

C 30

D 36

✓ Correct Answer: Option B

Calculate a_5 = 3(5) - 5 = 10. Calculate a_7 = 3(7) - 5 = 16. The sum of the 5th and 7th terms is 10 + 16 = 26.

💡 Why is B) the correct answer?

The correct answer to the question "If the nth term of a sequence is given by a_n = 3n - 5, what is the sum of the 5th and 7th terms?" is Option B: 26.

The other options — A) 22, C) 30, D) 36 — are incorrect for this GRE Exam Prep question. As explained above: Calculate a_5 = 3(5) - 5 = 10. Calculate a_7 = 3(7) - 5 = 16. The sum of the 5th and 7th terms is 10 + 16 = 26.

📚 About This GRE Exam Prep Practice Question

This 2-level GRE Exam Prep question from the Quantitative 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 GRE Exam Prep practice test or use flashcards for spaced repetition review.

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If the nth term of a sequence is given by a_n = 3n - 5, what is the sum of the 5th and 7th terms?

✓ Correct Answer: Option B

📚 About This GRE Exam Prep Practice Question

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