If the circus were to sell all of its 220 tickets for this month's performance at their usual price, the revenue from sales would be 10% greater than that collected last month. However, the circus raised the ticket price by 5% and sold only 200 tickets as a result. What percent less was last month's revenue than that of this month? Choose the correct choice from the following answers: A) 2 B) 5 C) 100/21 D) 110/20 E) 9/4
220p = 1.1RL (220 tickets at regular P price = 1.1 (or 10% more) than revenue last month (RL)   to find RL just multiply each side by 10/11 (1.1*10 = 11/11= 
<gadget id="calculator">11/11</gadget>
<output>1</output>
1)   220(10/11)p= 1.1(10/11)R:   200p = RL (so the revenue last month was = to 200p)   Now what does our revenue look like at the new ticket price this month:   200(1.05)P = 210p   so...if the revenue this month will be 210p, what percentage less was last months revenue at 200p than that of this month?   (210p-200p)/210p = 10p/210p = 1/21   we're looking for percentage though, so multiply this by 100   1/21(100) = 100/21   Answer 100/21
<result>C</result>
If the circus were to sell all of its 220 tickets for this month's performance at their usual price, the revenue from sales would be 10% greater than that collected last month. However, the circus raised the ticket price by 5% and sold only 200 tickets as a result. What percent less was last month's revenue than that of this month?