Question

A and B are in the ratio 4:5 if there hcf is 12 then find the sum of A and B

Answer 1

Answer:

let number one a be=4x

∴second number b=5x

hcf of no. one and two=12

                        4x × 5x=12

                        20x=12

                            x=12/20

                            x=0.6

first number a=4x

                   =4×0.6

                   =2.4

second number b=5x

                         =5×0.6

                         =3

sum of a and b=2.4+3

                        =5.4

Step-by-step explanation: