Question

is 24 years old and is 6 times as old as her brother. How old will be when she is 3 times as old as her brother?

Answer 1

let the age of brother be x years

so from question ,

                     6x=24

                       x=4

              now,

                     3x=3*4=12

hence she will be 12 years old when she is 3 times as old as her brother