Twenty eight 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 choice from the following answers:	A) 120	B) 176	C) 168	D) 105	E) 86
Let the present ages of the father and son be 2x and x years respectively.   then,(2x-28)=3 (x-28)   x=56.   Required sum =(2x+x)=3x=168 years.   Answer is 168
<result>C</result>
Twenty eight 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 :