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Brainteaser #20- As The Wind Blows -

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Puzzle Image Imagine the following hypothetical situation. An airplane flies in a straight line from point A to point B and then flies back in a straight line from point B to point A. The airplane maintains a constant engine speed for the entire flight and there is no wind.

At the same constant engine speed, would the travel time for the round trip increase, decrease, or stay the same if instead there was a constant wind that blew from A to B the entire time? Note that engine speed is not the same as the total speed of the airplane which is a combination of engine speed and wind speed etc.
Do you have a suggestion for this puzzle (e.g. something that should be mentioned/clarified in the question or solution, bug, typo, etc.)?