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Question

A number is selected at random from the numbers 1 to 30. The probability that it is a prime number


A

2/3

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B

1/6

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C

1/3

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D

11/30

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Solution

The correct option is C

1/3


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
=Total number of favourable outcomesTotal number of outcomes=1030=13
Hence, the correct option is C.


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