The ages of two persons differ by 16 years. 6 years ago, the elder one was 3 times as old as the younger one. What are their present ages of the elder person	Pick
A) 22
B) 66
C) 77
D) 30
E) 88
Let's take the present age of the elder person = x   and the present age of the younger person = x – 16   (x – 6) = 3 (x-16-6)   =&gt; x – 6 = 3x – 66   =&gt; 2x = 60   =&gt; x = 60/2= 
<gadget id="calculator">60/2</gadget>
<output>30</output>
30   Answer: 30
<result>D</result>
The ages of two persons differ by 16 years. 6 years ago, the elder one was 3 times as old as the younger one. What are their present ages of the elder person