A truck consumes 28 litres of diesel for moving through a distance of 448 km. How much distance will it cover in 64 litres of diesel?

Let the truck consume x litres of diesel.

Since it is a case of direct variation.

$\therefore \dfrac{28}{448} = \dfrac{64}{x}\\[1em] \Rightarrow x = \dfrac{64 \times 448}{28}\\[1em] \Rightarrow x = \dfrac{28,672}{28}\\[1em] \Rightarrow x = 1,024$

Hence, the truck will cover 1,024 km distance.