What percent increase is from 40 to 50?

A 10%

B 25%

C 20%

D 50%

✓ Correct Answer: Option B

Percent increase = (50−40)/40 × 100 = 10/40 × 100 = 25%.

💡 Why is B) the correct answer?

The correct answer to the question "What percent increase is from 40 to 50?" is Option B: 25%.

The other options — A) 10%, C) 20%, D) 50% — are incorrect for this PSAT Exam Prep question. As explained above: Percent increase = (50−40)/40 × 100 = 10/40 × 100 = 25%.

📚 About This PSAT Exam Prep Practice Question

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

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What percent increase is from 40 to 50?

✓ Correct Answer: Option B

📚 About This PSAT Exam Prep Practice Question

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