A police car leaves a crime scene heading east directly towards the hospital at 72 kilometres per hour. An ambulance leaves a quarter of an hour later and also heads directly east towards the hospital at 81 kilometres per hour. How long will it take for the ambulance to pass the police car?

The time taken by the ambulance to pass the police car is 2 hours and this can be determined by using the formula of speed.

Given :

The following steps can be used in order to determine the time taken by the ambulance to pass the police car:

Step 1 - The distance travel by the car is calculated as:

Step 2 - Now, the difference in speed is calculated as:

Step 3 - Now, the time taken by the ambulance to pass the police car is calculated as:

t = 2 hours

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step-by-step explanation:

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