Staff Selection Commission Quantitative Aptitude — Question 362

Question

The LCM of 18 and 24 is:

1. 48
2. 60
3. 72
4. 84

Correct answer

C — 72

Explanation (English)

18 = 2 × 3². 24 = 2³ × 3. LCM = 2³ × 3² = 72

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