Question 951887
A pilot can travel 400 miles with the wind in the same amount of time as 336 miles against the wind. Find the speed of the wind if the pilot's speed in still air is 230 miles per hour
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let c=wind speed
230+c=pilot's speed with the wind
230-c=pilot's speed against the wind
travel time =distance/speed
..
{{{400/(230+c)=336/(230-c)}}}
400(230-c)=336(230+c)
92000-400c=77280+336c
736c=14620
c=20
wind speed=20 mph