If there are six people in a group, then there are four more people in a group, which is equivalent to two less people in a group:

6.8=48

48-2=46 (person)

A: There are 46 people attending this remedial class.

LZ, please don't slander me. This is the best answer. I just went to ask my math teacher, and he said the idea was right.

6-4 is equal to 2 (6 people in each group, 4 more people, with less replacing more)