Bill is golfing with three friends and can either buy generic golf tees that are packaged by the dozen or the higher quality Aero flight tees that come by the pair. What is the minimum number of packages of Aero flight tees Bill must purchase to ensure that he has at least 20 golf tees for each member of his foursome, if he will buy no more than 2 packages of the generic golf tees?  Choose the most appropriate option:  A) 16  B) 10  C) 28  D) 4  E) 2
At least 20 golf tees for each member of his foursome = total of at least 4*20= 
<gadget id="calculator">4*20</gadget>
<output>80</output>
80 tees.   2 packages of the generic golf tees, that are packaged by the dozen= 2*12= 
<gadget id="calculator">2*12</gadget>
<output>24</output>
24 tees.   So, Bill must by at least 16 Aero tees. They come by the pair, hence he must by at least 56/2= 
<gadget id="calculator">56/2</gadget>
<output>28</output>
28 packages of Aero flight tees.   Answer: 28.
<result>C</result>
Bill is golfing with three friends and can either buy generic golf tees that are packaged by the dozen or the higher quality Aero flight tees that come by the pair. What is the minimum number of packages of Aero flight tees Bill must purchase to ensure that he has at least 20 golf tees for each member of his foursome, if he will buy no more than 2 packages of the generic golf tees?