Two numbers are in the ratio of 6: 5. If their HCF is 3, then what is the LCM of the two numbers?
Answer & explanation
Correct answer: option 3
Two numbers are in the ratio of 6 ∶ 5.
Their HCF is 3.
First number = 6 × 3 = 18
Second number = 5 × 3 = 15
LCM (18, 15) = 3 × 6 × 5 = 90