Elementary Mathematics • Topic Practice Hub
LCM & HCF (ADRE Questions & PYQ Solutions)
Practice official ADRE solved questions and previous year paper sets for LCM & HCF. Includes step-by-step solutions and explanations. Explore 2 questions collected from official SLRC ADRE Grade 3 & Grade 4 papers.
Total MCQs
2
Official PYQs
2
Subject
Elementary Mathematics
Format
Bilingual MCQs
Solved MCQs & Official Answer Explanations
ADRE 2024 • 2024 Paper 3Question 1
Two numbers are in the ratio 2 : 3 and the product of their HCF and LCM is 96. The sum of the two numbers is
A.18
B.20 ✓ (Correct)
C.22
D.24
Explanation: Let numbers be $2x, 3x$. Product $= 6x^2 = 96 \implies x = 4$. Sum $= 2x + 3x = 5x = 20$[cite: 5, 6].
ADRE 2024 • 2024 Paper 3Question 2
The smallest positive integer that is simultaneously divisible by 6, 8 and 12 is
A.24 ✓ (Correct)
B.18
C.48
D.36
Explanation: $\text{LCM}(6, 8, 12) = 24$[cite: 5, 6].
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