Question

A car travels 40 km with $2\frac{1}{2}$ litres of petrol. How much distance can it travel with 1 litre of petrol?

Answer 1

Distance travelled by car = 40 km
Amount of petrol needed = $2\frac{1}{2}$ litres
Distance travelled in one litre of petrol $=40÷2\frac{1}{2}=40÷\frac{5}{2}=40\times \frac{2}{5}=16$ km
The car travels 16 km in 1 litre of petrol.