A car travels 274 km. It travels an average of 9.1 km on a litre of petrol. Write down a calculation you could do to find the number of litres used. please step by step explanation ​

A car travels 274 km It travels an average of 91 km on a litre of petrol Write down a calculation you could do to find the number of litres used please step by class=

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Answer:

30.1 litres

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Step-by-step explanation:

9.1km : 1 litre

274km: x

274=9.1x

274/9.1=9.1x/9.1

30.1 =x

The number of litres used by the car to travel 274 Km is 30.11 L

What is speed?

Speed is the distance travelled per unit time . Mathematically, it can be expressed as:

Speed = distance / time

How to determine the Litre

Using the concept of speed given above, we can obtain the number of litres needed for the trip as follow:

  • Distance = 274 Km
  • Speed = 9.1 Km/L
  • Litre =?

Speed = distance / litre

9.1 = 274 / Litre

Cross multiply

9.1 × Litre = 274

Divide both side by 9.1

Litre = 274 / 9.1

Litre = 30.11 L

Learn more about speed:

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