MathematicsThe mean of factors of 18 is

The mean of factors of 18 is

A
5.5
B
6.5
C
6
D
7

Solution:

Factors of 18 are 1, 2, 3, 6, 9, 18

$M e a n = \frac{1 + 2 + 3 + 6 + 9 + 18}{6} = \frac{39}{6} = 6.5$

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