Question

A police car drives 108km in 1 1/2 hours what is its average speed in kilometers per hour.

Answer 1

72km/h

Step-by-step explanation

The average speed of the car can be calculated using the formula:

Average Speed=total distance/ total time taken.

The car covers a distance of 108km in 1½ hours.

We substitute the values into the formula to obtain,

`Average \: \: Speed= (108)/(1.5)`

`Average \: \: Speed=72 {kmh}^( - 1)`

Therefore the average speed of the journey is 72km/h