A solution is diluted from 10% to 2%. If you start with 50mL of 10% solution, how much total solution needed?

A 100 mL

B 250 mL

C 200 mL

D 500 mL

✓ Correct Answer: Option B

C₁V₁ = C₂V₂. 10 × 50 = 2 × V₂. V₂ = 500/2 = 250 mL total.

💡 Why is B) the correct answer?

The correct answer to the question "A solution is diluted from 10% to 2%. If you start with 50mL of 10% solution, how much total solution needed?" is Option B: 250 mL.

The other options — A) 100 mL, C) 200 mL, D) 500 mL — are incorrect for this PCAT Exam Prep question. As explained above: C₁V₁ = C₂V₂. 10 × 50 = 2 × V₂. V₂ = 500/2 = 250 mL total.

📚 About This PCAT Exam Prep Practice Question

This 2-level PCAT 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 PCAT Exam Prep practice test or use flashcards for spaced repetition review.

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A solution is diluted from 10% to 2%. If you start with 50mL of 10% solution, how much total solution needed?

✓ Correct Answer: Option B

📚 About This PCAT Exam Prep Practice Question

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