The sum of the present ages of a son and his father is 60 years. Six years ago, father's age was five times the age of the son. After 6 years, what will be son's age?  Choose the correct answer:
A) 20
B) 21
C) 22
D) 25
E) 18
Let the present age of the son =x   Then, present age of the father =(60−x)   Six years ago father's age was 5 times the age of the son   ⇒(60−x)−6=5(x−6)⇒84=6x⇒x=846=14   Son's age after 6 years   =x+6=14+6= 
<gadget id="calculator">14+6</gadget>
<output>20</output>
20   20nswer is 20.
<result>A</result>
The sum of the present ages of a son and his father is 60 years. Six years ago, father's age was five times the age of the son. After 6 years, what will be son's age?