SPEED,DISTANCE AND TIME

Question

Overall, the bus covered 12 kilometres in 35 minutes. What is this speed in kilometres per hour?

Answer 1

Set up two ratios (or fractions) where the kilometers are on the top and the minutes are on the bottom (remember to use 60 minutes for one hour): 12/35 = x/60

Now cross multiply: 720 = 35x

Divide both sides by 35: x = 20.6 kilometers/hour

Answer 2

Hi Nimay. Let's break the solution to this problem down into steps.

Step 1: Convert 35 minutes to hours using a conversion factor.

Our conversion factor would be: There are 60 minutes in 1 hour

35 minutes = 1 hour/60 minutes = 0.583 hour

Step 2: Divide kilometers by hours to find kilometers per hour.

12 kilometers/0.583 hour = 20.58 kilometers/hour

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