If a truck requires liters of diesel for covering a distance of , then:
liters of diesel will cover a distance of .
Given that,
liters of diesel requires for covering a distance of
By unitary method,
Since,
distance covered by liters of diesel
Divide both side by
Distance covered by liter of diesel
Multiply both side by
Distance covered by liters of diesel
Hence, liters of diesel will cover a distance of .