A box contains 4 red cards and 6 black cards. Two cards are drawn one after another without replacement. What is the probability that both are red?
A2/15
B4/25
C2/9
D3/10
Explanation
Probability of 1st red = 4/10 = 2/5. Probability of 2nd red = 3/9 = 1/3. Combined probability = (2/5) * (1/3) = 2/15.
Exam Relevance
- Topic: Probability
- Subtopic: Without Replacement
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