For a certain art exhibit, a museum sold admission tickets to a group of 30 people every 6 minutes from 9:00 in the morning to 6:00 in the afternoon, inclusive. The price of a regular admission ticket was $10 and the price of a student ticket was $6. If on one day 2 times as many regular admission tickets were sold as student tickets, what was the total revenue from ticket sales that day? Choose the correct choice from the following choices: A) $23400 B) $25920 C) $28080 D) $28500 E) $29160
From 9:00 in the morning to 6:00 in the afternoon, inclusive there are 9*10= 
<gadget id="calculator">9*10</gadget>
<output>90</output>
90 five-minute intervals, thus total of 54*30 tickets were sold.   Say x student and 2x regular tickets were sold, then x+2x=90*30 --&gt; x=30*30 and 2x=2*(30*30)=30*60.   Therefore, the total revenue from ticket sales that day was 30*30*6+30*60*10=$23,400.   $23400nswer: $23400.
<result>A</result>
For a certain art exhibit, a museum sold admission tickets to a group of 30 people every 6 minutes from 9:00 in the morning to 6:00 in the afternoon, inclusive. The price of a regular admission ticket was $10 and the price of a student ticket was $6. If on one day 2 times as many regular admission tickets were sold as student tickets, what was the total revenue from ticket sales that day?