Just want to confirm the answer, guys just share what are you getting here.
It should be D check it.
Yeah, getting same but answer mentions option c
Option C will be the answer
Sir, but we can get 160 as first term when r = 1/81?
Why n=1 is not possible? As there is nothing restriction in question for values of n
if take n=1 then sequence will be like this
How can we say this is G.P
@Shaquib Sir, I don't get you. Can you describe more why it will not an G. P.
If we take n=1 first term of will be 160 and other terms of GP will still exists as r=1/81. I am not getting what you want to say @Shaquib Sir please elaborate
Can you tell How we can declare any constant number a G.P or A.P.
Can you tell what is meaning of sum of first term.
A constant series can be said to be Ap/GP, but here, sum of infinite terms of the gp 160, 160, 160.... is not 162. So, answer is C
Here Series is not repeating it coming as a constant term.
@Hari_Shankar Sir, what are your views here
@Tanmay_1 @Shaquib Sir Can value of n change the nature of series from infinite series to non existing series. In this question n is used just to find sum of specific portion of series and not to redefine no of terms in series . Correct me if I am wrong anywhere
In this particular case the values of n is changing the series from infinity to non- existing.