Question

A truck runs $8$ km using $1$ litre of petrol. How much distance will it cover using $10\frac{2}{3}$ litre of petrol.

Answer 1

The question can be solved using unitary method.

Distance covered using $1\text{L}$ of petrol = $8\text{km}$

Distance covered using $10\frac{2}{3}\text{L}$ of petrol $=8\times 10\frac{2}{3}\text{km}=8\times \frac{32}{3}\text{km}=\frac{256}{3}\text{km}$

$=85\frac{1}{3}\text{km}$