Question

What is the average of first 20 multiple of 3.
se one​

Answer 1

Step-by-step explanation:

The first 20 multiples of 3 in the set of the Natural Numbers are:

0, 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57

Details

0 is multiple of 3, because 3 x 0 = 0

3 is multiple of 3, because 3 x 1 = 3

6 is multiple of 3, because 3 x 2 = 6

9 is multiple of 3, because 3 x 3 = 9

12 is multiple of 3, because 3 x 4 = 12

15 is multiple of 3, because 3 x 5 = 15

18 is multiple of 3, because 3 x 6 = 18

21 is multiple of 3, because 3 x 7 = 21

24 is multiple of 3, because 3 x 8 = 24

27 is multiple of 3, because 3 x 9 = 27

30 is multiple of 3, because 3 x 10 = 30

33 is multiple of 3, because 3 x 11 = 33

36 is multiple of 3, because 3 x 12 = 36

39 is multiple of 3, because 3 x 13 = 39

42 is multiple of 3, because 3 x 14 = 42

45 is multiple of 3, because 3 x 15 = 45

48 is multiple of 3, because 3 x 16 = 48

51 is multiple of 3, because 3 x 17 = 51

54 is multiple of 3, because 3 x 18 = 54

57 is multiple of 3, because 3 x 19 = 57

The sum of the first 20 multiples of 3, incluiding 3, is 570

The average of the first 20 multiples of 3, incluiding 3, is 28.5