Question 567210
Boat 	speed	=x	km/h				
current   	speed	=y	km/h				
against  current x-y		3.00	hours				
with current x+y		2.00	hours				
							
Distance = same=		50	km				
t=d/r							
50/(x-y	)=3.00
3(x-y)=	50.00
3x-3y=	50	....................1
50/(x+y	)=2.00
2.00(x+y)=50
2.00x+2.00y=50	...............2
Multiply (1) by 	2.00						
Multiply (2) by	3.00						
we get							
6x-6y	=	100	
6x+6y	=	150	
12x=250				
/12						
x 	=	125/6	km/h				
							
plug value of x in (1)							
3	x		-3	y	=	50	
125/2			-3	y	=	50	
-3	y	=	50	-125/2			
-3	y	=	-25/2				
	y	=	25/6	km/h			
The speed of  	Boat 	=	125/6	km/h			
The speed of  	current   	=	25/6	km/h		
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