Question

Flying against the wind, an airplane travels 3090 kilometers in 3 hours. Flying with the wind, the same airplane travels 5080 kilometers in 4 hours. What is the rate of the plane in still air and what is the rate of the wind?

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Jett

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The rate of the plane in still air is 1150 km/h., The rate of the wind is 120 km/h.

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