Question

3. A vehicle covers a distance of 43.2 km in 2.4 litres of petrol. how much distance will it cover in one litre of petrol?

Answer 1

Answer:

Distance traveled in 1 liter of petrol is 18 km.

Step-by-step explanation:

Given :

Distance covered - 3.2 km.

Petrol - 2.4 liters.

To Find :

The distance will it cover in one liter of petrol.

Solution :

Distance covered in 2.4 liters petrol - 43.2 km.

Distance covered in 1 liter petrol -

$\implies \sf \dfrac{43.2}{2.4}\\ \\ \\\implies \sf \dfrac{\dfrac{432}{10}}{\dfrac{24}{10}}}\\ \\ \\\implies \sf \dfrac{432}{10}\;\div\;\dfrac{24}{10}\\ \\ \\\implies \sf \dfrac{432}{10}\;\times\;\dfrac{10}{24}\\ \\ \\\implies \sf \dfrac{432}{24}\\ \\ \\\implies \boxed{\textbf{18}}$

∴ The vehicle covers 18 km in one liter of petrol.

Answer 2

$\bold{ \large{ \green{ \underline{ \underline{ Question...}}}}}$

A vehicle covers a distance of 43.2 km in 2.4 litres of petrol. how much distance will it cover in one litre of petrol?

$\bold{ \large{ \red{ \underline{ \underline{Answer...}}}}}$

$</p><p>\large{ \sf{18 \: km\: in \:one \:litre\: of\: petrol}}$

$\bold{ \large{ \green{ \underline{ \underline{Solution....}}}}}$

$</p><p>\sf{ \pink{ \to \: given}}$

Amount of Petrol used =2.4 litresDistance travelled= 43.2 km

$</p><p>\sf{ \pink{ \to \: to \: find}}$

Distance travelled using 1 litre petrol.

$\large{ \sf{ \to \: by \: unitary \: method...}} \\ \\ \large{ \red{ \sf{let \: for \: x \: litres = y \: km \: }} } \\ { \red{ \large{ \sf{ \: then \: in \: 1 \: litres = \frac{y}{x}km}}}} \: \: \\ \\ \large{ \sf{ \to \: in \: 2.4 \: litres = 43.2 \: km}} \\ \\ \large{ \sf{ \to \: then \: in \: 1 \: litre = \frac{43.2 \: km}{2.4}}}\\ \\ \large{ \sf{ = \frac{432}{10} \div \frac{24}{10}}}\\ \\\large{ \sf{ = \frac{432}{10} \times \frac{10}{24} }}\\ \\ \large{ \sf{ = \frac{432}{24}=18 km}}$

$</p><p>\large{ \bold{ \orange{ required \: answer \: is \: 18 \: km}}}$