A boy runs 1.5 km in 45 minutes. What is his speed in kilometers per hour?
Let's think step by step.
2
Since 1 hour is equal to 60 minutes, then 45 minutes is equal to 45 / 60 = 0.

75 hours.

Then, the speed in kilometers per hour is 1.

5 km / 0.

75 hour = 2 kilometers per hour.

.

Final answer: 2