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) 11	B) 66	C) 28	D) 30	E) 99
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