Question

A car uses a litre of petrol to cover a distance of $15km$. How many litres of petrol will be required by the car to travel the distance of $450km$?

Answer 1

Finding the petrol required:

Petrol required to cover a distance of $15km$ $=1litre$

Petrol required to cover a distance of $1km$ $=\frac{1}{15}litre$

Petrol required to cover a distance of $450km$$=\frac{1}{15}\times 450=30litres$

Thus, $30litres$ of petrol will be required by the car to travel the distance of $450km$.