As the elevation increases, the runways length has to be changed at wh

1.	As the elevation increases, the runways length has to be changed at what rate ?
A.	Decreased @ 5% per 300 m rise in elevation above M.S.L.
B.	Increased @ 7% per 300 m rise in elevation above M.S.L.
C.	Decreased @ 9% per 300 m rise in elevation above M.S.L.
D.	Increased @ 15% per 300 m rise in elevation above M.S.L.
Answer» C. Decreased @ 9% per 300 m rise in elevation above M.S.L.

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As the elevation increases, the runways length has to be changed at what rate ?

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