Question 557648
plane speed	=	300	mph										
wind speed	=	x	mph										
wind speed													
speed against	wind	300	-	x									
speed with	wind	300	+	x									
													
Distance against	wind	1200	miles										
Distance with 	wind	1800	miles										
													
t=d/r	time against = time with wind									
1200/(300-x)=1800/(300+x)
1200(300+x)=1800(300-x)			
360000	+	1200x	=	540000-1800x 					
1800x	+1200x	=	180000								
3000	x	=	180000										
/	3000												
x 	=	60	mph	wind speed									
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