Question

The ratio between two numbers is 3:4 and their L.C.M is 180. the first number

Answer 1

Answer:

let the number be 3x and 4x

product of two numbers =lcm x hcf

3x * 4x=180 x hcf

(here hcf =x

because hcf is the common between two numbers

and I the number are 3x and 4x )

3x*4x=180*x

12 x^2/x=180

12x=180

x=15

first number =3*x=3*15=45