Bob roller skates 48 km in 4 hours. What is his average speed in kilometers per hour?

1 Answer
Moksha ยท Stefan V.
May 21, 2017

His average speed is "12 km/hr".

Explanation:

Remember the triangle of Speed, Distance and Time. If you remember it, you'll ace these kinda questions.

![www.bbc.co.uk)

I had trouble with these formulas but the triangle helped me a LOT! Anyways, let's get back to the question. The formula for average speed is pretty much the same as the formula for just speed. The average speed formula is

"Average speed" = "Total Distance"/"Total Time"

So......

"48 km"/"4 hr" = "12 km/hr"

My source

I hope this explanation helps you!

Related questions
See all questions in Rates
Impact of this question
8813 views around the world
You can reuse this answer
Creative Commons License