2×24=48 people
3× 16=48 (person)
4× 12=48 (person)
6×8=48 people
24×2=48 (person)
16×3=48 (person)
12×4=48 (person)
8×6=48 (person) A: One row or one line doesn't count, because it is one line, and there are 8 kinds of * * *.