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Asked by Ritishkumar Last Modified
Answer n(s)=30
LetA be the event Of getting non divisible by 3
A = 1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 16, 17, 19, 20, 22, 23, 25, 26, 28, 29.
n(A) = 20
P(A) = 20/30 = 2/3
Let B be the event of getting prime number greater than 7
B = 11, 13, 17, 19, 23, 29
N(B) = 6
P(B) = 6/30 = 1/5.
Let c be the getting not perfect square
C = 2, 3, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15, 17, 18, 19, 20, 21, 22, 23, 24, 26, 27, 28, 29, 30.
n(c) = 25
P(c) = 25/30 = 5/6.
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