If the total distance covered to cape town was 1420 km, calculate the average speed (in km /h) at which they drove , correct to two decimal places.

Question

Use formula: average speed = distance × time
*they left 6am and reached their destination at 23:20

Answer 1

To calculate the average speed, we need to divide the total distance covered by the total time taken.

First, let's calculate the time taken. They left at 6 am and reached their destination at 23:20, so the total time taken is 23 hours and 20 minutes.

To convert the minutes to hours, divide 20 minutes by 60:
20 minutes / 60 = 0.33 hours

Now, add the hours and the converted minutes:
23 hours + 0.33 hours = 23.33 hours

Now, we can calculate the average speed:
average speed = total distance / total time

average speed = 1420 km / 23.33 hours

Calculating this division gives us:
average speed = 60.93 km/h (rounded to two decimal places)

Therefore, the average speed at which they drove is 60.93 km/h.