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33 votes
3 b. A taxi hurries 261 km in 135 minutes. What is its average speed in kilometers per hour?

3 b. A taxi hurries 261 km in 135 minutes. What is its average speed in kilometers-example-1
User Abhishek Gurjar
by
2.6k points

1 Answer

12 votes
12 votes

Taxi goes 261 km in 135 minutes.

We need speed in KM/HR

The distance is given in Km, but the time is NOT in hours. We convert minutes to hours as shown below:


135\min *(1hr)/(60\min )=(135)/(60)hr=2.25hr

Now, we can use Distance Formula to solve for the speed:

D = RT

Where

D is distance [given as 261 km]

R is speed [what we want to find]

T is time [2.25 hours]

Thus,


\begin{gathered} D=RT \\ 261=R(2.25) \\ R=(261)/(2.25) \\ R=116\frac{\operatorname{km}}{hr} \end{gathered}

Average Speed = 116 kilometers per hour

User Priyanshu Jindal
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3.5k points