A bag contains 6 red balls and 4 blue balls. If two balls are drawn at random without replacement, what is the probability that both balls are red?
✓ Correct Answer: Option A
Total balls = 6 red + 4 blue = 10. Probability of drawing the first red ball = 6/10. After drawing one red ball, there are 5 red balls left and a total of 9 balls. Probability of drawing a second red ball = 5/9. The probability of both being red is (6/10) * (5/9) = 30/90 = 1/3.
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This 3-level GMAT 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.
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