Three identical airplanes with identical air speeds leave Williamston, Michigan

Question

Three identical airplanes with identical air speeds leave Williamston, Michigan with the intention of flying to Tallahassee, Florida, which is directly south of Williamston. Airplanes C and A leave on Monday, when there is a strong wind from the west. The pilot of airplane C points the plane directly south and is blown off course, passing east of Tallahassee, while Airplane A adjusts its direction to account for the wind and flies directly to Tallahassee. Airplane B leaves on Tuesday, a calm and windless day, and flies directly south to Tallahassee.
The plane(s) with the highest ground speed is _________.


The plane(s) that reaches Tallahassee in the least amount of time is________.

Explanation / Answer

a) plane a will have highest landing speed, because of the wind.
b) plane b will reach with minimum time because of less air interference.

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