At a summer camp with 2100 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 2100 campers will the 8- to 12-year-olds represent?	Choose the correct answer:	A) 62	B) 68	C) 66	D) 64	E) 66 2/3
Total - 2100 participants   campers are aged 8 to 12 = (1/2)*2100= 
<gadget id="calculator">(1/2)*2100</gadget>
<output>1_050</output>
1050   Next year, campers are aged 8 to 12= (4/3)*1050= 
<gadget id="calculator">(4/3)*1050</gadget>
<output>1_400</output>
1400   Percentage= (1400/2100)*100 = 66 2/3%   Answer: Option 66 2/3
<result>E</result>
At a summer camp with 2100 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 2100 campers will the 8- to 12-year-olds represent?