With that explanation in mind, how would you set about solving a questions like the one below?:
(Refer to CAP 697 figure 4.3.1)
Trip distance: 1900 NM
Fuel on board: 15 000 kg
Landing weight: 50 000kg
What is the minimum pressure altitude for this flight?
a FL370
b 10 000 ft
c 17 000 ft
d FL250