Math, asked by tweety2002, 1 year ago

Find the sum of 1st 8 multiples of 3 ?

Answers

Answered by perfectstormswift
18
The sum of first 8 multiples  of 3 forms an A.P. because of the same common difference.

The A.P goes like : 3, 6, 9... 24

a= 3, an= 24, n=8 

Sn= n/2 ( a + an)
= 8/2 ( 3 + 24)
= 4 (27)
= 108

manavlodha002: 108
innuverma1: ???
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tweety2002: no problem :)
Answered by innuverma1
4

3+6+9+12+15+18+21+24\\   =108

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