Question 757158
The drama club sold 421 tickets 
so let there are x students ticket & 421-x adult tickets
Student tickets cost 2 dollars and adult tickets cost 5 dollars.total is 1200 dollars. 
so 2x+5(421-x)=1200
or 2x+2105-5x=1200
or 3x=2105-1200=905
or x=905/3=301.67 =302 round figure
so there are 302 students & 421-302=119 adults