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Home > Maths I > Numbers and Money > Distance, speed and time

Maths I

Distance, speed and time

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Calculating TIME, given speed and distance

Question

Joanna drives for 400km at an average speed of 80km/h. How long was her journey?

Answer
A triangle shows the equation that time equals distance divided by speed.

Time = Distance/Speed

Time = 400 \over 80

Time = 5hrs

Joanna's journey was 5hrs long.

Question

Scott cycles at 4mph and covers a distance of 13 miles. How long does his journey take?

Answer
A triangle shows the equation that time equals distance divided by speed.

Time = Distance/Speed

Time = 13 \over 4

 

Time = 3.25hrs

But we don't write 3.25 hours. The answer should be in hours and minutes.

So the answer is 3hrs 15mins.

Hopefully, that wasn't too difficult. But if you made any mistakes try those examples again.

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Watch

Police car.

Class Clips

Video clip showing how the police use distance/time calculations to catch out speeding drivers

Watch

A stunt accident being set up for an episode of Casualty.

Class Clips

Video clip about the use of maths, including ratio, in setting up a crash stunt for Casualty

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