A plane flies 600 miles per hour with the wind and 530 miles

A plane flies 600 miles per hour with the wind and 530 miles per hours against the wind. Find the speed wind and the speed of the plane in still air.

Solution

The \"speed of the plane in still air\" is called the airspeed.
It\'s the average of the 2 groundspeeds.
= (600 + 530)/2

= 565 mph
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The wind speed is the difference:
600 - 565 = 35 mph