HCF & LCM · Question 30 · Hard
Three numbers are in the ratio 1 : 2 : 3 and their HCF is 12. What is their LCM?
- 36
- 144
- 216
- 72
Answer and explanation
Answer: D. 72
Explanation: The numbers are 12, 24 and 36 (HCF 12 since 1, 2, 3 have HCF 1). LCM(12, 24, 36) = 72.
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