Diesel required for $$594$$km $$=108$$ litres
Diesel require for $$1$$km $$=108/594=2/11$$ litre
Therefore, diesel required for $$1650$$km $$=2/11\times 1650=300$$ litres
Thus, $$300$$ litres diesel will be required by the truck to cover a distance of $$1650$$ km.