Question

calculate the rate per litre at which a car uses petrol ,if it uses 20litres of petrol to travel 180km​

Answer 1

Answer:

9 km per litre

Step-by-step explanation:

Rate = 180 km / 20 l

Rate = 9 km/l

Answer 2

Given,

A car uses 20 liters of petrol to travel a distance of = 180 Km

To find,

The rate at which the car uses petrol.

Solution,

We can simply solve this mathematical problem using the following process:

Mathematically, by using the unitary method, we get;

The car uses 20 liters of petrol to travel a distance of = 180 Km

=> The car uses 1 liter of petrol to travel a distance of = (180/20) Km = 9 Km

Hence, the car uses petrol at the rate of 9 Km/liter.