A man is 30 years older than his son. In four years, his age will be twice the age of his son. The present age of this son is
Choose the correct option:
A) 22 years	B) 23 years	C) 24 years	D) 25 years	E) 26 years
Explanation:   Let's Son age is x, then Father age is x+30.   =&gt; 2(x+4) = (x+30+4)   =&gt; 2x+8 = x+34   =&gt; x = 26 years   Answer: Option 26 years
<result>E</result>
A man is 30 years older than his son. In four years, his age will be twice the age of his son. The present age of this son is