A man is 24 years older than his son. In four years, his age will be twice the age of his son. The present age of the son is Choices:
A) 14 years  B) 18 years  C) 20 years  D) 22 years  E) None
Solution   Let the son's present age be x years .Then, man's present age	= (x+24)years.   Then	â€¹=â€º(x+24)+4= 2(x+4)   â€¹=â€ºx+28=2x+8   x= 20.   Answer 20 years
<result>C</result>
A man is 24 years older than his son. In four years, his age will be twice the age of his son. The present age of the son is