At a summer camp with 900 participants, 1/2 of the campers are aged 8 to 12. Next year, the number of campers aged 8 to 12 will increase by 1/3. After this change, what percentage of the total 900 campers will the 8- to 12-year-olds represent?  Options:
A) 64% B) 66 2/3% C) 62% D) 60% E) 56%
Total - 900 participants   campers are aged 8 to 12 = (1/2)*900= 
<gadget id="calculator">(1/2)*900</gadget>
<output>450</output>
450   Next year, campers are aged 8 to 12= (4/3)*450= 
<gadget id="calculator">(4/3)*450</gadget>
<output>600</output>
600   Percentage= (600/900)*100 = 66 2/3%   Answer: Option 66 2/3%
<result>B</result>
At a summer camp with 900 participants, 1/2 of the campers are aged 8 to 12. Next year, the number of campers aged 8 to 12 will increase by 1/3. After this change, what percentage of the total 900 campers will the 8- to 12-year-olds represent?