Multiple choice general knowledge math & puzzles

HCF of three numbers is 12.Their ratio is 1 : 2 : 3 the numbers are _______

  1. 12,24,36

  2. 10,20,30

  3. 5,10,15

  4. 4,8,12
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A Correct answer
Explanation

HCF = 12 means 12 is the largest number dividing all three. In ratio 1:2:3, the smallest number must equal the HCF, so numbers are 12, 24, 36.

AI explanation

If the HCF of three numbers in ratio 1:2:3 is 12, the numbers themselves are 12×1, 12×2, and 12×3, i.e., 12, 24, and 36 — scaling the ratio by the HCF directly gives the actual numbers, and their greatest common factor is indeed 12.

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