Question

Average speed of 1hr and 20 mins and 72km?
pls​

Answer 1

Average speed= 54 km/h

Explanation:

Average speed= total distance/total time

= 72 km/1.333 hours (we have to use 1 unit either minutes or hours we should not use both units together so 1 hour 30 minutes is 1.33333 hours. We get it by adding the hour with the minutes and then dividing it by 60. 1+20/60=1.3333)

Average speed= 54 km/h

Answer 2

54 km/hr

Explanation:

To clarify...

It took 1hr and 20 mins to travel 72km. What is the average speed?

Distance = Rate x Time ==> Rate (speed) = Distance / Time

So Speed =
`(72km)/(1(1)/(3)hrs)=(72km)/((4)/(3)hrs)=72((3)/(4))(km)/(hr)=54(km)/(hr)`