A bag contains 6 white and 4 black balls. Two balls are drawn at random together. What is the probability that both are white?
A1/3
B2/5
C1/2
D3/5
Explanation
Favorable ways = C(6, 2) = 15. Total ways = C(10, 2) = 45. Probability = 15 / 45 = 1/3.
Exam Relevance
- Topic: Probability
- Subtopic: Combinatorial Probability
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