Real Numbers
CBSE 2026 Board Exam Set 1 (Code 30/7/1)
CBSE_BOARD_PYQ_2026_30_7_1
Grade 10
Question:
[Section A]
If $a = x^3 y^2$ and $b = x y^3$, where $x$ and $y$ are prime numbers, then $\text{LCM}(a, b)$ is:
(A) $x y$
(B) $x^2 y^2$
(C) $x^3 y^3$
(D) $x^4 y^5$
Step-by-Step Solution
Key Concept: LCM is the product of the highest powers of each prime factor involved.
Sol. (C) $x^3 y^3$. [1.0 Mark]
Correct Answer: (C) $x^3 y^3$
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