Final answer:
The total number of people that can be transported in all vehicles combined is 16 people.
Step-by-step explanation:
To find out how many people can be transported in all vehicles combined, we need to add the number of people that can fit in a car and the number of people that can fit in a van.
Given that 5 people can fit in a car and 11 people can fit in a van, we can calculate the total by adding these numbers: 5 + 11 = 16.
Therefore, the total number of people that can be transported in all vehicles combined is 16 people.