Question

The ratio of the fuel used to cover 2 km to the fuel used to cover 4 km is

• A. 2:4
• B. 20:10
• C. 4:10
• D. 4:2

Answer 1

The correct option is A 2:4

$\text{Distance covered (km)}$	$2$	$4$	$8$
$\text{Fuel used (in L)}$	$\frac{1}{20}$	$\frac{1}{10}$	$\frac{1}{5}$
$\text{Fuel used to}\text{cover 1 km (in L)}$	$\frac{1}{40}$	$\frac{1}{40}$	$\frac{1}{40}$

$\text{Fuel used to cover 2 km}=\frac{1}{20}\text{L}$
$\text{Fuel used to cover 4 km}=\frac{1}{10}\text{L}$

$\text{Ratio of the fuel used to cover 2 km}\text{to the fuel used to cover 4 km}=1:2=2:4$