Question 481107
boat  	speed	=x	mph					
current  	speed	=y	mph					
against current x-y		3.00	hours					
with current x+y		2.00	hours					
								
Distance = same=		24	miles					
t=d/r								
24	/	(	x	-	y	)=	3.00	
3	(	x	-	y	)	=	24.00	
3	x		-3	y	=	24	....................1	
24	/	(	x	+	y	)=	2.00	
2.00	(	x	+	y	)	=	24	
2.00	x	+	2.00	y	=	24	...............2	
Multiply (1) by 	2.00							
Multiply (2) by	3.00							
we get								
6	x	+	-6	y	=	48		
6	x	+	6	y	=	72		
12	x	=	120					
/	12							
x 	=	10	mph					
								
plug value of x in (1)								
3	x		-3	y	=	24		
30			-3	y	=	24		
-3	y	=	24	-30				
-3	y	=	-6					
	y	=	2	mph				
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