Question

The ratio of the two numbers is 3: 4 and their LCM is 480. Find their HCF.

Ratio of two number 34 Let the HCF x First number 3x and second number 4x LCM 480. So, First number second numberLCM HCF 3x4x 480 x x4801240. x 40

A 30

B 40

C 160

D 120

Detailed Solution