Question 864854
Part I	7.25%		per annum	-------------	Amount invested =x		
Part II	8.00%		per annum	------------	Amount invested = y		
	12000						
Interest-----	900.00						
							
Part I	7.25%		per annum	---x			
Part II	8.00%		per annum	---y			
Total investment							
x	+	1	y=	12000	-------------1		
Interest on both investments							
7.25%	x	+	8.00%	y=	900		
Multiply by		100					
7.25	x	+	8	y=	90000.00	--------2	
Multiply (1) by			-7.25				
we get							
-7.25	x	-7.25	y=	-87000.00			
Add this to (2)							
0	x	0.75	y=	3000			
divide by		0.75					
			y	=	4000		
Part I	7.25%	$	8000				
Part II	8.00%	$	4000				
							
CHECK							
8000	---------	7.25%	-------	580.00			
4000	-------------	8.00%	-------	320.00			
Total			--------------------	900.00			
							
m.ananth@hotmail.ca