Question

Write the natural numbers from 2 to 12. What fraction of them are prime numbers?

• A. $\frac{4}{11}$
• B. $\frac{5}{11}$
• C. $\frac{6}{11}$
• D. $\frac{7}{11}$

Answer 1

The correct option is B

$\frac{5}{11}$

Natural numbers from 2 to 12 are: 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12

Number of Natural numbers from 2 to 12 = 11

Prime numbers from 2 to 12: 2, 3, 5, 7, 11

Number of Prime numbers from 2 to 12 = 5

Hence, the fraction of prime numbers from 2 to 12 = $\frac{5}{11}$