Airport Engineering - Engineering

Q1:

For the proposed runway stated in if the aerodrome reference temperature is 17°.2, the net designed length of the runway is

A 2716 m

B 2816 m

C 2916 m

D 3016 m

ANS:B - 2816 m

@All.

Actually, the question was; The length of the runway under standard atmospheric conditions is 1800m. If the actual reduced level of the site is 1200m and the aerodrome reference temperature is 17 'C, the net designed length of the runway is:

Then how the answer is 2816m? Anyone, explain the answer in detail.