Mathematics · Probability
A bag contains x blue balls and y green balls. Two balls are drawn successively without replacement. What is the probability that the two selected balls are of different colours?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 12xy(x + y)2
- 24xyx + y
- 32xy(x + y)(x + y - 1)✓
- 4xy(x + y)(x + y - 1)
Correct answer
2xy(x + y)(x + y - 1)
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