Come up with a question and reasoning that would justify this answer: 6
The question is: Alyana has a pizza that is cut into 16 slices. After she and her friends finish eating, there are 4 slices left. If each of them ate 2 slices of pizza, how many people ate the pizza?
Step-by-step reasoning process: 16 - 4 = 12 slices of pizza were eaten. So there were 12 / 2 = 6 people eating the pizza.