Question

A car uses 20litres of petrol to travel 400km. Find the rate in litres per km?

Answer 1

Answer:

20 km per liter

Step-by-step explanation:

Distance traveled = 400 km

Petrol used. = 20 liters

Petrol used per km = 400/20

= 20 km

therefore, a car travels 20 km in 1 litre.

Answer 2

Answer:

$\frac{1}{20} = 0.05 litres/kilometers$ is the required rate.

Step-by-step explanation:

Distance travelled by car  $= 400kilometers$

Petrol consumption by car $= 20Litres$

Petrol consumption litres per km $= \frac{20}{400 }litres/kilometers$

                                                       $= \frac{1}{20 } litres/kilometer$

Therefore, a car requires $0.05Litres$ of petrol in $1 kilometer$.

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