A woman is 20 years older than her son. In 5 years, her age will be twice the age of her son. The present age of her son is
Pick one:
A) 15  B) 14  C) 13  D) 12  E) 11
Explanation:   Let the son's present age be x years. Then, woman's present age = (x + 20) years   =&gt; (x + 20) + 5 = 2(x + 5)   =&gt; x + 25 = 2x +10   So, x = 15. 15nswer: 15
<result>A</result>
A woman is 20 years older than her son. In 5 years, her age will be twice the age of her son. The present age of her son is