Question

how to find mean of first 7 multiples of 3​

Answer 1

first 7 multiple of 3is

3,6,9,12,15,18,21

so the mean will be 12

Answer 2

Answer:

the multiples of 3 is:

3,6,9,12,15,18,21

when we add these numbers:

3+6+9+12+15+18+21

=84

when we divide it by 7 :

84/7

=12

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