A man travels a distance of 84km in 1hr 20mins.Find his average speed
We can begin by converting 1 hour 20 minutes to its equivalent value in hours. There are 60 minutes in 1 hour, so 1 hour 20 minutes can be written as:
1 hour + 20/60 hours = 1.33 hours
Now we can use the formula:
average speed = total distance ÷ time
In this case, the total distance is 84 km and the time is 1.33 hours. Substituting these values into the formula, we get:
average speed = 84 km ÷ 1.33 hours
Simplifying the right side, we get:
average speed ≈ 63.16 km/h
Therefore, the man's average speed was approximately 63.16 km/h.