Question

The ratio of two numbers is 3 : 4 and their HCF is 5 their LCM is :

• A. 10
• B. 12
• C. 15
• D. 60

Answer 1

Answer:

D. 60

The ratio of two numbers 3 : 4 = 3x : 4x LCM = HCF × a × b N1/N2 = HCF × a/HCF × b N1/N2 = a/b = 3/4 LCM = HCF × a × b = 5 × 3 × 4 = 60