Final answer:
Using a tape diagram, we can determine that there were more trucks being pulled over in March, but we cannot determine the exact number of trucks and cars without additional information.
Step-by-step explanation:
To determine how many trucks and cars were being pulled over in March, we can use a tape diagram. Let's represent the number of trucks as 16x and the number of cars as 6x, where x represents the common factor between the two quantities. We are told that there were more trucks being pulled over, so we can set up the equation 16x > 6x. Solving for x, we find that x > 0, meaning there is a positive common factor between the two quantities. Therefore, we cannot determine the exact number of trucks and cars being pulled over without additional information.