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Mathematics · 2026 · 1 mark
CBSE 2026 · Region 3 · Set 3 · Q8
If a matrix X is such that [2 1] X = [3 4 5], then the order of matrix X is:
If a matrix $\displaystyle X$ is such that $\displaystyle [2 \ \ 1] X = [3 \ \ 4 \ \ 5]$, then the order of matrix $\displaystyle X$ is :
Official answer
(B)
$\displaystyle 2 × 3$
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CBSE Class 12 Mathematics past-paper question from the 2026 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.