What shall come in place of question mark in figure 3 ?

1) 12,3,4 are related to each other that we will find out how below;

3 x 4 = 12.

2) 24, 4, 6;

4 x 6 = 24

similarly,

? x 3 = 24

8 x 3 = 24

Thus, we will need 08 to follow the same pattern.