The answer is 87.5 km/hr
Explanation:
To find the average speed of an object given it's distance covered and time taken we use the formula
[tex]v = \frac{d}{t} \\ [/tex]
where
d is the distance
t is the time taken
From the question
d = 280 km
t = 3.2 hrs
We have
[tex]v = \frac{280}{3.2} \\ [/tex]
We have the final answer as
87.5 km/hr
Hope this helps you
