Quote : kwagga:
A plane at FL310 is instructed to descend to FL280, if the plane is descending at a rate of 1200 ft per minute, how long will the plane take to descend to FL280.
A) 2 minutes 20 seconds
B) 2 minutes 40 seconds
C) 3 minutes
D) None of the above.
As stupid as it must sound but I really have no idea how to figure these above questions :/ I have been giving it a thought with my basic knowledge of SDT but this is something I have never across before. Help?
Also , could anyone please tell me if we are allowed calculators ? ( I know we probably aren't , but i just wanted to make sure
)