A theater charges $12 for seats in the orchestra and $8 for seats in the balcony. On a certain night, a total of 380 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? Pick:
A) 90
B) 110
C) 120
D) 130
E) 240
Orchestra Seats - a   Balcony Seats - b   a+b = 380   and 12a + 8b = 3320   Solving equations simultaneously (Multiply Equation 1 with 8 and subtract from second equation)   4a = 3320 - 8*380 = 3320 - 3040= 
<gadget id="calculator">3320 - 3040</gadget>
<output>280</output>
280   i.e. a= 70   and b = 380-70= 
<gadget id="calculator">380-70</gadget>
<output>310</output>
310   More seats in balcony than orchestra= b-a = 310 - 70= 
<gadget id="calculator">310 - 70</gadget>
<output>240</output>
240   Answer: option 240
<result>E</result>
A theater charges $12 for seats in the orchestra and $8 for seats in the balcony. On a certain night, a total of 380 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?