On a summer camp, 25% of the campers paid $120 each, 30% paid $80 each and the rest paid $65 each. What percentage of the total amount paid came from the campers who paid $80?  Choose the correct option.
A) 18%
B) 21%
C) 35%
D) 33.3%
E) 37.5%
let the total no of campers be 100   total amount = (25*120)+(30*80)+(40*65) = 3000+2400+2600= 
<gadget id="calculator">3000+2400+2600</gadget>
<output>8_000</output>
$8000   required percentage= (28/80)*100= 
<gadget id="calculator">(28/80)*100</gadget>
<output>35</output>
35%   35%
<result>C</result>
On a summer camp, 25% of the campers paid $120 each, 30% paid $80 each and the rest paid $65 each. What percentage of the total amount paid came from the campers who paid $80?