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Mathematics · 2024 · 1 mark
CBSE 2024 · Region 1 · Set 1 · Q4
In an A.P., if the first term a=7, n th term a_n=84 and the sum of first n terms s_n=2093/2, then n is equal to:
In an A.P., if the first term $\displaystyle a=7, n$th term $\displaystyle a_{n}=84$ and the sum of first $\displaystyle n$ terms $\displaystyle s_{n}=\frac{2093}{2}$, then $\displaystyle n$ is equal to :
Official answer
(C)
$\displaystyle 23$
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CBSE Class 10 Mathematics past-paper question from the 2024 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.