Mathematics · 2020
JEE Main · 5 September 2020, Shift 2 · Q56
If the sum of the second, third and fourth terms of a positive term G.P. is 3 and the sum of its sixth, seventh and eighth terms is 243, then the sum…
If the sum of the second, third and fourth terms of a positive term G.P. is $\displaystyle 3$ and the sum of its sixth, seventh and eighth terms is $\displaystyle 243$ , then the sum of the first $\displaystyle 50$ terms of this G.P. is :
Official answer
(1)
$\displaystyle \frac{1}{26}\left(3^{50}-1\right)$
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JEE Main 2020 Mathematics question, with the answer from NTA’s final answer key. Where our answers come from.