Question 722483
plane speed	=	180	mph										
windspeed	=	x	mph										
													
speed against	wind	180	-	x									
speed with	wind	180	+	x									
													
Distance against	wind	600	miles										
Distance with	wind	1000	miles										
													
t=d/r	time against = time with		wind	-									
600	/	(	180	-	x	)=	1000	/	(	180	+	x	)
600	(	180	+	x 	)=	1000	(	180	-x	)			
108000	+	600	x	=	180000	-	-1000	x					
1000	x	600	x		180000	+	-108000						
1600	x	=	72000										
/	1600												
x	=	45	mph	wind	speed