Question 1088110
Let p be the speed of the plane, and w be the speed of the wind. Then:
560/p+w=2.5
560/p-w=3
So:
2.5p+2.5w=560
3p-3w=560
7.5p+7.5w=1680
7.5p-7.5w=1400
15p=3080
p=205.333
w=18.666
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