SOLUTION: A plane flies 420 miles with the wind and 340 miles against teh wind in same length of time. If the speed of the wind is 30 mph, what is the speed of the plane in still air?

Question 187080: A plane flies 420 miles with the wind and 340 miles against teh wind in same length of time. If the speed of the wind is 30 mph, what is the speed of the plane in still air?
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

This is the same problem as Problem 187089 (See link below). Change the numbers and solve it the same way.

http://www.algebra.com/algebra/homework/word/travel/Travel_Word_Problems.faq.question.187089.html

John

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