If Batman drives at an average speed of 125.0 km/hr for 3 hours, and 75.0 km/hr for 1 hour, what is the average speed of the entire trip?

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To determine the average speed of Batman's entire trip, you need to consider both the total distance traveled and the total time spent traveling.

First, calculate the distance for each segment of the trip:

For the first part of the trip, where Batman drives at 125.0 km/hr for 3 hours, the distance is calculated as follows: Distance = Speed × Time = 125.0 km/hr × 3 hr = 375.0 km.

For the second part of the trip, where he drives at 75.0 km/hr for 1 hour, the distance is: Distance = Speed × Time = 75.0 km/hr × 1 hr = 75.0 km.

Now, add these two distances together to find the total distance: Total Distance = 375.0 km + 75.0 km = 450.0 km.

Next, calculate the total time spent on the trip: Total Time = 3 hours + 1 hour = 4 hours.

Finally, the average speed is calculated by dividing the total distance by the total time: Average Speed = Total Distance / Total Time = 450.0 km / 4 hr = 112.5 km/hr.

Thus, the average