From table – 190 000 kg,  6515 NAM,  459 kts

6515 – 459 = 6056 NAM → 184 600 kg

190 000 – 184 600 = 5400 kg/hr

Fuel mileage – ground distance covered in 1 hour 459 + 100 = 559 NGM

Therefore NM/1000kg = 559/5.4 = 103.5 NM/1000kg