A student is taking a test with 5 problems on it. For each problem the student answers correctly, the student receives 20 points.

It seems like the first part of a scenario or question. Given this context:

If the student answers all 5 problems correctly, the student would receive:
5 problems x 20 points per problem = 100 points

If the student answers fewer problems correctly, here's the breakdown of their possible scores:

- 4 correct answers: 4 x 20 = 80 points
- 3 correct answers: 3 x 20 = 60 points
- 2 correct answers: 2 x 20 = 40 points
- 1 correct answer: 1 x 20 = 20 points
- 0 correct answers: 0 x 20 = 0 points

Each correct answer gives the student 20 additional points to their score.