CBSE 2025 · Region 1 · Set 3 · Q17 · 1 mark
The $\displaystyle 11^{\text {th }}$ and $\displaystyle 13^{\text {th }}$ term of an AP are $\displaystyle 39$ and $\displaystyle 45$ , respectively. What is the common difference of the AP ?
Official answer
From CBSE’s own marking scheme for this paper.
(D)
$\displaystyle 3$
Arithmetic Progressionsnth Term of an APApplymcqeasy
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CBSE Class 10 Mathematics past-paper question from the 2025board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.