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IKMC 2027 - Grades 9-10 - Self-study SET 9 - Thematic Batch 3 Question 16

IKMC · IKMC 2027 - Grades 9-10 - Self-study SET 9 - Thematic Batch 3

Question 16

Alex’s box contains four balls, exactly two red. Julia’s contains n balls, exactly four red. Each randomly draws two balls. Can their probabilities of drawing two red balls be equal?

Question illustration
  1. Yes, when n=6
  2. Yes, when n=7
  3. Yes, when n=8
  4. Yes, when n=9
  5. This is impossible