A plane can
fly 1120km in 1 hour
20 min with the wind Flying
against the same wind, the plane
travels the same distance in
I hour 24 minutes. Find the speed of the plane and the speed of the wind
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rate with wind:: 1120 km/(4/3)hr = 840 km/hr
rate against with: 1120/(24/60) = 2800 km/hr
Equation:
With wind:: p + w = 840
Against wind:: p - w + 2800
2p = 1640
plane speed = 820 km/hr
Solve for "w":
p + w = 840
2800 + w = 840
w = -1960 km/hr
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