Question

It takes serína 0.25 hours to drive to school. Her route is 16 km long. what is serina’s average speed on her Drive to school? Km/hr

Answer 1

The rule of the average speed is

`A\mathrm{}S=(d)/(t)`

d is the distance

t is the time

Since Serina takes 0.25 hour to drive 16 km, then

d = 16 km

t = 0.25 hr

Substitute them in the rule above

`\begin{gathered} AS=(16)/(0.25) \\ AS=64\text{ km/h} \end{gathered}`

Her average speed is 64 km per hour