A motorist travelled 60km in 1 hours and a further 90km in 2 hours. His average speed in km/hr for the entire journey was??

Question

asked Aug 25, 2023 181k views

1 Answer

Stefan · Answer 1 · 2023-08-28T21:36:49+0000

To get average speed you take:

Total distance / total time = average speed

As we can see, the total distance that the motorist travelled was:

$60km+90km=150\operatorname{km}$

And, the total time taken is:

Then, his average speed is:

$\frac{150\operatorname{km}}{3h}=\frac{50\operatorname{km}}{h}$