A composite number is selected at random from the first 30 natural numbers and it is divided by 5. The probability that there will be remainder is `14
A composite number is selected at
random from the first 30 natural numbers and it is divided by 5. The probability
that there will be remainder is
`14//19`
b. `5//19`
c. `5//6`
d. `7//15`
A. `14//19`
B. `5//19`
C. `5//6`
D. `7//15`
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Correct Answer - A
The number of composite numbers in 1 to 30 is n(S) = 19.
The number of composite numbers when divided by 5 leaves a remainder is n(E) = 14. Therefore, the required probability is `14//19`.
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