Question

Let \( S_n\) denotes the sum of first n terms of an AP. If \(S_{2n}= 3S_n\) then the ratio is equal to :

Answer 1

\[\frac{\S_{2n}}{\S_n} = \frac{2n/2(2a+(2n-1)d}{n/2(2a+(n-1)d}\]

Answer 2

Answer is 6

Answer 3

oh wait

Answer 4

Ratio of \[\S_{3n}:\S_n\]

Answer 5

Its \(S\)

Answer 6

3 it's given

Answer 7

Ok i guess there is something Wrong in the question
the questions is
Let \(S_n\) denotes the sum of first n terms of an AP. If \(S_{2n}=3S_n\) then the ratio is equal to :
But in the hint they are finding the ratio of \(S_{3n} : S_n\)

Answer 8

It is an assumption that S2n:Sn = 3, i think it is asking to find other parameter

Answer 9

Okay i'll try to figure out the question lol :D
Thanks anyways