Question

A car travels a distance of 225 km using 25 litres of petrol. How many litres of petrol will be required to cover a distance of 540 kilometres by this car?

• A. 41 L
• B. 49 L
• C. 58 L
• D. 60 L

Answer 1

The correct option is D

60 L

More petrol will be required for covering more distance. So, this is a case of direct proportion.
$\begin{array}{ccc}Distancetravelled\left(km\right)& 225& 540\\ Petrolrequired\left(litres\right)& 25& x\end{array}$

Then,
$\frac{225}{25}=\frac{540}{x}x=\frac{540\times 25}{225}x=60litres$.