Final answer:
By dividing the total number of 20 cupcakes by 15 students, each student would receive approximately 1.33 cupcakes, making option A the correct answer.
Step-by-step explanation:
To determine how many cupcakes each student would get if Hermione brought 20 cupcakes to school and there are 15 students in the class, divide the total number of cupcakes by the number of students.
20 cupcakes / 15 students = 1.3333...
Since we cannot distribute a fraction of a cupcake, each student would get approximately 1.33 cupcakes. Answer B suggests the students would get 1.25 cupcakes each, which is incorrect because 20 divided by 15 equals approximately 1.33, not 1.25.
Therefore, the correct choice is A. Each student gets 1.33 cupcakes.