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प्रश्न
A number is selected at random from the numbers 1 to 30. The probability that it is a prime number is:
(A) 2/3
(B) 1/6
(C) 1/3
(D) 11/30
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उत्तर
Total number of possible outcomes = 30
Prime numbers between 1 to 30 are 2, 3, 5, 7, 11, 13, 17, 19, 23 and 29.
Total number of favourable outcomes = 10
∴ Probability of selecting a prime number from 1 to 30
`=`
Hence, the correct option is C.
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