A boy walks 800m in 20 minutes. Calculate his average speed in km/h.
Answer Details
The average speed of the boy can be calculated by dividing the distance he traveled by the time it took him to travel that distance.
To convert the distance from meters to kilometers, divide 800 by 1000, which gives 0.8 km.
To convert the time from minutes to hours, divide 20 by 60, which gives 0.3333 hours.
Now, we can calculate the average speed by dividing the distance by the time:
0.8 km ÷ 0.3333 hours = 2.4 km/h.
So, the average speed of the boy is 2.4 km/h.