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The speed of the wind is 20 miles per hour. If it takes a plane 7 hours to fly 2368 miles round trip, determine the plane's speed in still air.
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With wind one way and against the wind the other way?
SPEED TIME DISTANCE
AGAINST r-20 2368/(r-20) 2368
WITH r+20 2368/(r+20) 2368
TOTAL 7
This is too much like another solved not too long ago.
https://www.algebra.com/algebra/homework/word/travel/Travel_Word_Problems.faq.question.1156610.html