Question 456850
Adult ticket 	x Numbers					
Child ticket	------------	y Numbers					
x+y=920	.............1	
4x+2y=2446	.............2	
								
multiply (1)by 		-2						
Multiply (2) by		1						
-2x-2y=	-1840		
4x+2y=2446		
Add the two equations								
2x=606		
/2							
x=303					
plug value of x	in (1)				
x+y=920		
303+y=920		
y=920-303
y=617		
y=617