Question

find the sum of first 8 multiples of 3

Answer 1

Find the sum of the first 8 multiples of 3 is 108.

Step-by-Step Explanation:

• Sum means the addition process in mathematics.

• The first 8 multiples of 3 are the first eight answers os table of three.

• The first 8 multiples of 3 according to the table of 3 are:

• 3=6=9=12=15=18=21=24=108

• So the sum of the first 8 multiples of 3 is 108.

Answer 2

Step-by-step explanation:

To find the sum of first 8 multiples of 3,

One can form an A.P.,I.e.

3,6,9,12...24

Here a(First term)= 3

d(common difference)=3

l (last term)= 24

n(number of terms)= 8

Sum of n terms

$S_n=\frac{n}{2}[a+l]\\\\S_8=\frac{8}{2}[3+24]\\\\=4(27)\\\\S_8=108$

So, sum of first 8 multiples of 3 is 108.

Hope it helps you.