Final answer:
By applying the ratio of cars to trucks (5:3) to the total number of vehicles (192), we find that there are 120 cars and 72 trucks in the school parking lot.
Step-by-step explanation:
The ratio of cars to trucks in the school parking lot is 5 to 3. To find out how many are cars and how many are trucks, we can use this ratio along with the total number of vehicles, which is 192.
First, we add the parts of the ratio together: 5 (for cars) + 3 (for trucks) = 8 parts in total.
Now, we calculate the value of one part by dividing the total number of vehicles by the total number of parts: 192 ÷ 8 = 24. This means every single part of our ratio represents 24 vehicles.
To find the number of cars, we multiply the number of parts for cars (5) by the value of one part: 5 × 24 = 120.
Similarly, to find the number of trucks, we multiply the number of parts for trucks (3) by the value of one part: 3 × 24 = 72.
Therefore, there are 120 cars and 72 trucks in the school parking lot.