If it is 75 degrees Fahrenheit at ground level, what is the temperature at 4000ft (under normal circumstances)?

A.
32 degrees Fahrenheit
B.
42 degrees Fahrenheit
C.
45 degrees Fahrenheit
D.
53 degrees Fahrenheit
E.
58 degrees Fahrenheit

1 answer

temperature decrease=-5.4F/1000ft * 4000ft=-22F
75-22=53F