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Mathematics · 2025 · 1 mark
CBSE 2025 · Region 6 · Set 1 · Q19
Assertion (A): For any two prime numbers p and q, their HCF is 1 and LCM is p + q. Reason (R): For any two natural numbers, HCF × LCM = product of…
Assertion (A) : For any two prime numbers p and q, their HCF is $\displaystyle 1$ and LCM is p + q.
Reason (R) : For any two natural numbers, HCF × LCM = product of numbers.
Official answer
(D)
Assertion (A) is false, but Reason (R) is true.
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CBSE Class 10 Mathematics past-paper question from the 2025 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.