A theater charges $12 for seats in the orchestra and $8 for seats in the balcony. On a certain night, a total of 370 tickets were sold for a total cost of $3,320. How many more tickets were sold that night for seats in the balcony than for seats in the orchestra?  Answers
A) 90 B) 190 C) 120 D) 130 E) 220
Orchestra Seats - a   Balcony Seats - b   a+b = 370   and 12a + 8b = 3320   Solving equations simultaneously (Multiply Equation 1 with 8 and subtract from second equation)   4a = 3320 - 8*370 = 3320 - 2960= 
<gadget id="calculator">3320 - 2960</gadget>
<output>360</output>
360   i.e. a= 90   and b = 370-90= 
<gadget id="calculator">370-90</gadget>
<output>280</output>
280   More seats in balcony than orchestra= b-a = 280 - 90= 
<gadget id="calculator">280 - 90</gadget>
<output>190</output>
190   Answer: option 190
<result>B</result>
A theater charges $12 for seats in the orchestra and $8 for seats in the balcony. On a certain night, a total of 370 tickets were sold for a total cost of $3,320. How many more tickets were sold that night for seats in the balcony than for seats in the orchestra?