If 20% of a class averages 80% on a test, 50% of the class averages 60% on the test, and the remainder of the class averages 40% on the test, what is the overall class average? Choose the correct choice from the following choices:
A) 80% B) 74% C) 58% D) 56% E) 50%
2 students scored 80%   5 students scored 60%   3 students scored 40%   (2)(80) + 5(60) + 3(40) =   160 + 300 + 120= 
<gadget id="calculator">160 + 300 + 120</gadget>
<output>580</output>
580   580/10= 
<gadget id="calculator">580/10</gadget>
<output>58</output>
58 --&gt; 58% average   ANSWER:58%
<result>C</result>
If 20% of a class averages 80% on a test, 50% of the class averages 60% on the test, and the remainder of the class averages 40% on the test, what is the overall class average?