Multiple choice

If the HCF of two numbers is 6 and their LCM is 120, one such pair of numbers is :

  1. 24, 30

  2. 18, 40

  3. 12, 60

  4. 12, 40
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

For two numbers, HCF × LCM = product of the numbers. Given HCF = 6 and LCM = 120, the product is 720. Checking option A: 24 × 30 = 720 ✓ and HCF(24,30) = 6 ✓ and LCM(24,30) = 120 ✓. Option B: 18 × 40 = 720 but HCF = 2, not 6. Option C: 12 × 60 = 720 but HCF = 12, not 6.

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