🧠 GRE Exam Prep

If N is an integer and N leaves a remainder of 3 when divided by 5, which of the following expressions must be a multiple of 5?

A N + 1
B N + 2
C N + 3
D N + 4

✓ Correct Answer: Option B

If N leaves a remainder of 3 when divided by 5, N can be written as 5k + 3. Adding 2 to N gives 5k + 3 + 2 = 5k + 5 = 5(k+1), which is always a multiple of 5.

💡 Why is B) the correct answer?

The correct answer to the question "If N is an integer and N leaves a remainder of 3 when divided by 5, which of the following expressions must be a multiple of 5?" is Option B: N + 2.

The other options — A) N + 1, C) N + 3, D) N + 4 — are incorrect for this GRE Exam Prep question. As explained above: If N leaves a remainder of 3 when divided by 5, N can be written as 5k + 3. Adding 2 to N gives 5k + 3 + 2 = 5k + 5 = 5(k+1), which is always a multiple of 5.

📚 About This GRE Exam Prep Practice Question

This 3-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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