Question

A marathon runner completes a 42km course at an average speed of 7km/h. Calculate the time taken to complete the course.

Answer 1

t = 6 hours

Explanation:

Given that,

Average speed, v = 7 km/h

Distance, d = 42 km

We need to find the time taken to complete the course. The average speed is given by :

`v=(d)/(t)\\\\or\\\\t=(d)/(v)\\\\t=(42\ km)/(7\ km/h)\\\\t=6\ h`

So, the time taken to complete the course is 6 hours.