Question

A car travels 81 km in 4.5 litres of petrol. How far will it go by 20 litres of petrol?

Answer 1

Answer:

360 KM

Step-by-step explanation:

car travel 81 km in 4.5 lit

then 81/4.5 = 18 km per litre

then 18x20= 360 KM

Answer 2

The car travels 360 km in 20 litre of petrol

Given :

A car travels 81 km in 4.5 litre of petrol

To find :

The distance travelled by the car in 20 litre of petrol

Solution :

Step 1 of 2 :

Form the equation

Here it is given that the car travels 81 km in 4.5 litre of petrol

Let the distance travelled by the car in 20 litre of petrol = x km

By the given condition

81 : 4.5 = x : 20

Step 2 of 2 :

Find the distance

$\displaystyle \sf{ 81 : 4.5 = x : 20 }$

$\displaystyle \sf{ \implies \frac{81}{4.5} = \frac{x}{20} }$

$\displaystyle \sf{ \implies x = 20 \times \frac{81}{4.5} }$

$\displaystyle \sf{ \implies x = 360 }$

Hence the car travels 360 km in 20 litre of petrol

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