<PRE><B>Question 419592</B>
Train A speed	=	x	mph								
Train B speed	=	x	+	15	mph						
Train A has left 		2	hours early								
Train A has traveled 		2	x	miles before Train B starts							
The trains are travelling in opposite directions											
so their combined speed =		2	x+	15	mph						
Train B has traveled 		6	hours								
Diatance  	580										
2x+6(	2	x	+	15	)	=	580
2x	+	12x	+	90	=	580			
14	x	=	580	-90							
14	x	=	490								
	x	=	35	mph		Train A speed					
			50	mph		Train B speed					
</PRE>