What fraction of natural numbers from 2 to 10 are prime numbers?

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Question

What fraction of natural numbers from 2 to 10 are prime numbers?

Options:

A . 19

B . 29

C . 39

D . 49

Answer: Option D
:
D
Natural numbers from 2 to 10are: 2, 3, 4, 5, 6, 7, 8, 9, 10
Number of Natural numbers from 2 to 10= 9
Prime numbers from 2 to 10: 2, 3, 5, 7
Number of Prime numbers from 2 to 10= 4
Hence, the fraction of prime numbers from 2 to 10=

\frac{4}{9}

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