Johnny bought six peanut butter cans at an average price (arithmetic mean) of 36.5¢. If Johnny returned two cans to the retailer, and the average price of the remaining cans was 30¢, then what is the average price, in cents, of the two returned peanut butter cans?
Pick
A) 5.5  B) 11  C) 47.5  D) 66  E) 49.5
Total price of six cans = 6*36.5= 
<gadget id="calculator">6*36.5</gadget>
<output>219</output>
219   Total price of 4 cans= 4*30= 
<gadget id="calculator">4*30</gadget>
<output>120</output>
120   Total rice of two cans= 219 - 120= 
<gadget id="calculator">219 - 120</gadget>
<output>99</output>
99   Average price of two cans= 99/2= 
<gadget id="calculator">99/2</gadget>
<output>99/2 = around 49.5</output>
49.5 c   Another way to do it is this:   Assume that the four leftover cans were of 30c each. The avg was 36.5c initially because the two cans were 36.5c each and were providing another 6.5c of cost to other 4 cans.   So cost of the two cans= 2*36.5 + 4*6.5= 
<gadget id="calculator">2*36.5 + 4*6.5</gadget>
<output>99</output>
99   Avg cost of the two cans= 99/2= 
<gadget id="calculator">99/2</gadget>
<output>99/2 = around 49.5</output>
49.5c   Answer (49.5)
<result>E</result>
Johnny bought six peanut butter cans at an average price (arithmetic mean) of 36.5¢. If Johnny returned two cans to the retailer, and the average price of the remaining cans was 30¢, then what is the average price, in cents, of the two returned peanut butter cans?