Course A or Course B

Difficulty: Hard · Topics: Discrete Mathematics, Sets, Word Problems

In a class with an equal number of girls and boys, the children go to course A or course B after school. The number of students who go to course A is 1 more than the number who go to course B.

The number of boys who go to course A, the number of girls who go to course B and the number of boys who go only to course B are equal.

If 5 people go to both courses and 8 girls go to course A, how many students are there in this class?