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Q.

The mean of first nine prime numbers is

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a

\frac{101}{9}

b

\frac{109}{8}

c

\frac{100}{9}

d

\frac{108}{9}

answer is C.

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Detailed Solution

The first nine prime numbers are 2,3,5,7,11,13,17,19,23

The mean of first nine prime numbers is $\frac{2 + 3 + 5 + 7 + 11 + 13 + 17 + 19 + 23}{9} = \frac{100}{9}$

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The mean of first nine prime numbers is