Oil crisis

A car runs 16 km using 1 litre of petrol. How much distance will it cover using 2 3/4 litres of petrol?

Correct answer:

x =  44 km

Step-by-step explanation:

$$\begin{gathered} V_1=1\text{ l } \\ {V}_2=2{\displaystyle \frac{3}{4}}=2+{\displaystyle \frac{3}{4}}={\displaystyle \frac{2\cdot 4+3}{4}}={\displaystyle \frac{11}{4}}=2.75\text{ l } \\ x=16\cdot {\displaystyle \frac{V_2}{V_1}}=16\cdot {\displaystyle \frac{2.75}{1}}=44\text{ km} \end{gathered}$$

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