Question 864353
Part I	10.00%		per annum	-------------	Amount invested =x		
Part II	5.00%		per annum	------------	Amount invested = y		
	20000						
Interest-----	1800.00						
							
Part I	10.00%		per annum	---x			
Part II	5.00%		per annum	---y			
Total investment							
x	+	1	y=	20000	-------------1		
Interest on both investments							
10.00%	x	+	5.00%	y=	1800		
Multiply by		100					
10	x	+	5	y=	180000.00	--------2	
Multiply (1) by			-10				
we get							
-10	x	-10	y=	-200000.00			
Add this to (2)							
0	x	-5	y=	-20000			
divide by		-5					
			y	=	4000		
Part I	10.00%	$	16000				
Part II	5.00%	$	4000				
							
CHECK							
16000	---------	10.00%	-------	1600.00			
4000	-------------	5.00%	-------	200.00			
Total			--------------------	1800.00			
							
m.ananth@hotmail.ca