Question

find the sum of first 8 multiples of 4​

Answer 1

Answer:

The sum of first 8 multiples of 4:–

4+8+12+16+20+24+28+32=144

hope it will help you....

Answer 2

Multiples(4):4,8,12,16,24,28,32,36, 40,44,48........
So the eight multiple of 4 is 32.

Let the first multiple be a and the eight multiple be an.
Total terms be n.

According to this,
Sn= n(a+an)/2
=8(4+32)/2=8(36)/2
=> Sn=288/2= 144

So the sum of first 8 multiples of 4 is 144.

Hope this is helpful.