Question 825121
Part I	12.00%		per annum	-------------	Amount invested =x	
Part II	4.00%		per annum	------------	Amount invested = y	
	30000					
Interest-----	2400.00					
						
Part I	12.00%		per annum	---x		
Part II	4.00%		per annum	---y		
Total investment						
x	+	1	y=	30000	-------------1	
Interest on both investments						
12.00%	x	+	4.00%	y=	2400	
Multiply by		100				
12	x	+	4	y=	240000.00	--------2
Multiply (1) by			-12			
we get						
-12	x	-12	y=	-360000.00		
Add this to (2)						
0	x	-8	y=	-120000		
divide by		-8				
			y	=	15000	
Part I	12.00%	$	15000			
Part II	4.00%	$	15000			
						
CHECK						
15000	---------	12.00%	-------	1800.00		
15000	-------------	4.00%	-------	600.00		
Total			--------------------	2400.00		
						
m.ananth@hotmail.ca