Imelda's plane travels at a speed of 350kph in still air. One day, she travels 169km against the wind at the same time it takes to travel 190km with the wind. Find the speed of the wind.

1 answer

speed of wind --- x km/h

speed against the wind = 350-x km/h
speed with he wind = 350+x km/h

169/(350-x) = 190/(350+x)
cross-multiply and solve for x
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