Mathematics
mamalula
31

at maximum speed, an airplane travels 2460 miles against the wind in 6 hours. flying with the wind, the plane can travel the same distance in 5 hours. what is the speed of the plane in no wind?

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(1) Answers
kristen4tice

let speed of aeroplane = a mph speed of wind = w mph an airplane travels 2460 miles against the wind in 6 hours 6(a-w) = 2460 a -w = 410  ------------(1) flying with the wind, the plane can travel the same distance in 5 hours 5(a+w) = 2460 a+w = 492  -------------(2) adding (1) and (2) 2a = 902 a = 902/2 = 451 mph Speed of aeroplane with no wind is 451 mph

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