Direction: Study the following information carefully to answer the question the question that follow.
A box contains 2 blue caps, 4 red caps, 5 green caps and 1 yellow cap.
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If two caps are picked at random, what is the probability that both are blue?
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- 1/6
- 1/10
- 1/12
- None of these
Correct Option: D
Total number of caps = 2 + 4 + 5 + 1 = 12
Total number of outcomes = n(S) = 12 C2 = 66
Favorable number of outcomes = n(E) = 2C2 = 1
∴ Required probability = 1/66
