Question

In a group of 60 students, 12 students take algebra one, 18 students take algebra 2 and 8 students take both subjects how many students don’t take either of these subjects

Answer 1

60-12-18-2-8=20
=48-18-2-8
=30-2-8
=28-8
=20

So, 20 students don't take either of these subjects.