Final answer:
To calculate the speed in km per hour, divide the distance traveled by the time taken in hours.
Step-by-step explanation:
To calculate the speed in km per hour, we need to first convert the given time from minutes to hours. The journey takes 24 minutes, which is equal to 24/60 = 0.4 hours. Next, we can use the formula:
Speed = Distance/Time
We're given that the distance is 5 km and the time is 0.4 hours, so:
Speed = 5 km / 0.4 hours = 12.5 km/h