CBSE 2025 · Region 5 · Set 2 · Q4 · 1 mark
Let $\displaystyle a=p^{2} q^{3} r^{n}$ and $\displaystyle b=p^{3} q^{m} r^{2}$, where $\displaystyle p, q, r$ are prime numbers. If LCM of a and b is $\displaystyle p^{3} q^{4} r^{3}$, then the value of $\displaystyle 3 n-2 m$ is
Official answer
From CBSE’s own marking scheme for this paper.
(B)
$\displaystyle 1$
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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.