Answer:
The correct answer is - 154.2 miles per hour.
Explanation:
The velocity of an object can be calculated by dividing the distance covered by the object in a unit of time. In the given question we know that car covers 85 kilometers of distance in 20.5 minutes.
We know: 1 km = 0.621371 miles
then, 85 km = 0.621371 × 85
= 52.81 miles
Then velocity will be:
= 52.81/20.5
= 2.57 miles/minute
converting miles/minute to miles/hour
= 2.57 × 60
= 154.2
