<PRE><B>Question 593676</B>
Train I	x	mph							
Train II	x+	10	mph						
..									
They are moving away from each other									
									
So add up their speed.									
									
combined speed = x+		1	x	+	10				
(	2	x	+	10	)				
Time =	4.5	hours							
Distance =   	405	miles							
Distance = speed * time									
(	2	x		10	)*	4.5	=	405	
9.00	x	+	45	=	405				
9	x	=	405	+	-45				
9	x	=	360						
/	9								
x=	40	mph							
Train  I  	=	40	mph						
Train II  	40	+	10	=	50	mph			
m.ananth@hotmail.ca									
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