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A die is rolled twice. P(both rolls show same number) is
A1/6
B5/36
C1/3
D1/36
Answer & Solution
Correct answer: A. 1/6
1. Total outcomes = 36.
2. Same-number outcomes: (1,1),(2,2),(3,3),(4,4),(5,5),(6,6) -> 6.
3. P(same) = 6/36 = 1/6.
4. So the probability is 1/6.
_Source: ICAI BoS Foundation Paper 3, Ch 15 'Probability', p.6_
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