You have to cover an air distance of 2 000 NM. Your flight time
will be:
• From table 150 000 kg → 2464 NAM 359 min
• 2464 NAM – 2000 NAM = 464 NAM →72 min
• 359 – 72 = 287 min
• Climb correction 6 min
• Descent correction 10 min
• Time = 287 + 6 + 10 =303 min (correct answer 304 min)