In a class of 20 students, 3 students did not borrow any books from the library, 9 students each borrowed 1 book, 4 students each borrowed 2 books, and the rest borrowed at least 3 books. If the average number of books per student was 2, what is the maximum number of books any single student could have borrowed? Choose one:	A) 13	B) 14	C) 15	D) 16	E) 17
The total number of books the students borrowed is 20*2= 
<gadget id="calculator">20*2</gadget>
<output>40</output>
40.   The students who borrowed zero, one, or two books borrowed   9*1+4*2= 
<gadget id="calculator">  9*1+4*2</gadget>
<output>17</output>
17 books.   The 4 students who borrowed at least three books borrowed   40-17= 
<gadget id="calculator">  40-17</gadget>
<output>23</output>
23 books.   If 3 of these students borrowed exactly 3 books, then the maximum that one student could have borrowed is  23-9= 
<gadget id="calculator"> 23-9</gadget>
<output>14</output>
14 books.   The answer is 14.
<result>B</result>
In a class of 20 students, 3 students did not borrow any books from the library, 9 students each borrowed 1 book, 4 students each borrowed 2 books, and the rest borrowed at least 3 books. If the average number of books per student was 2, what is the maximum number of books any single student could have borrowed?