Torry has submitted 2/5 of his homework assignments, and he received an average grade of 75 for those assignments. If he wishes to receive an average grade of 84 for all his homework assignments, the average grade for Torry's remaining homework assignments must be what percent greater than the average grade for the assignments he has already submitted? Pick
A) 15% B) 20% C) 25% D) 33 1/3% E) 40%
0.4*75 + 0.6x = 84   30 + 0.6x=84   0.6x = 54   x= 90   90/75= 
<gadget id="calculator">90/75</gadget>
<output>6/5 = around 1.2</output>
1.2   Ans:20%
<result>B</result>
Torry has submitted 2/5 of his homework assignments, and he received an average grade of 75 for those assignments. If he wishes to receive an average grade of 84 for all his homework assignments, the average grade for Torry's remaining homework assignments must be what percent greater than the average grade for the assignments he has already submitted?