Twenty four years ago,a father was three times as old as his son.Now the father is only twice as old as his son. Then the sum of the present ages of the son and the father is :
Choose the correct answer.
A) 144 B) 76 C) 108 D) 105 E) 86
Let the present ages of the father and son be 2x and x years respectively.   then,(2x-24)=3 (x-24)   x=48.   Required sum =(2x+x)=3x=144 years.   144nswer is 144
<result>A</result>
Twenty four years ago,a father was three times as old as his son.Now the father is only twice as old as his son. Then the sum of the present ages of the son and the father is :