Ipsa bought a car which covers 363 km in 24.2 litres of petrol. How far can she go in 7 litres of petrol?
105 km
As the distance to be travelled increases, so does the amount of petrol needed, thus, it is a case of direct proportion.
Distance (in km)363yAmount of petrol(in l)24.27
24.2363=7y⇒y=7×36324.2=105 km