List I: 11, 13, 15, 19 List II: x,11, 13, 15, 19 Choose the most appropriate option
A) 10	B) 12	C) 11	D) 13	E) 14
List I has even number of terms, thus its median is the average of two middle terms (when arranged in ascending/descending order), so median=(13+15)/2= 
<gadget id="calculator">(13+15)/2</gadget>
<output>14</output>
14   List II has odd number of terms, thus its median is the middle term (when arranged in ascending/descending order). As no other number in the list equal to 14, then x=14.   Answer: 14
<result>E</result>
List I: 11, 13, 15, 19 List II: x,11, 13, 15, 19