In 10 years, A will be twice as old as B was 10 years ago. If A is now 6 years older than B the present age of B is  Choose the most appropriate option
A) 37 B) 36 C) 39 D) 40 E) 41
let present age of A be a and 36 be b   a+10 = 2*(b-10)   =&gt; 2b-a = 30 ......(i)   a = b+6   =&gt;2b-b-6 = 30   b=36   so the present age of b is 36 years   ANSWER:36
<result>B</result>
In 10 years, A will be twice as old as B was 10 years ago. If A is now 6 years older than B the present age of B is