Subject
Quantitative Aptitude
Topic
Probability
Two dice are tossed. The probability that the total score is a prime number is:
Two dice are tossed. The probability that the total score is a prime number is:
ক)
5/12খ)
1/6গ)
1/2ঘ)
7/9Explanation
Clearly, n(S) = (6 x 6) = 36. Let E = Event that the sum is a prime number. Then E= { (1, 1), (1, 2), (1, 4), (1, 6), (2, 1), (2, 3), (2, 5), (3, 2), (3, 4), (4, 1), (4,3),(5, 2), (5, 6), (6, 1), (6, 5) } n(E) = 15. P(E) = n(E)/n(S) = 15/36 = 5/12.Related questions
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