Set S consists of integers {6, 8, 10, 12, 14}. If integer n is included in the set, the average (arithmetic mean) of set S will increase by 30%. What is the value of integer n?	Choose the correct choice.
A) 10  B) 12  C) 16  D) 22  E) 28
The average of the numbers in set S is 10.   If we increase the mean by 30%, the new mean is 13.   Thus, on average, 5 numbers increase by 3.   Therefore n = 13+15= 
<gadget id="calculator">13+15</gadget>
<output>28</output>
28   The answer is 28.
<result>E</result>
Set S consists of integers {6, 8, 10, 12, 14}. If integer n is included in the set, the average (arithmetic mean) of set S will increase by 30%. What is the value of integer n?