In 10 years, A will be twice as old5as B was 10 years ago. If A is now 9 years older than B, the present age of B is
Options:	A) 16 years	B) 88 years	C) 39 years	D) 66 years	E) 77 years
Let B's age = x years.   Then, As age = (x+ 9) years.   (x+9+10)=2(x—10)   hence x=39.   Present age of B = 39 years   Answer: 39 years
<result>C</result>
In 10 years, A will be twice as old5as B was 10 years ago. If A is now 9 years older than B, the present age of B is