Question

The ratio of two numbers is 5 ∶ 7 and their HCF is 3. Their LCM is:

• A. 75
• B. 105
• C. 92
• D. 125

Answer 1

Answer:

B. 105

ratio of the numbers are 5 and 7 and their H.C.F = 3 numbers = 5 × 3 = 15 , 7 × 3 = 21 Product of two numbers = H.C.F × L.C.M 15 × 21 = 3 × L.C.M L.C.M = 105