Answer:
16
Step-by-step explanation:
You can choose
In total there are
[tex]2\cdot 2\cdot 4=16[/tex]
different outfits.
Another way to solve this problem is simply count all outfits:
Shirts [tex]Sh_1, \ Sh_2[/tex]
Pants [tex]P_1,\ P_2[/tex]
Shoes [tex]S_1, \ S_2,\ S_3,\ S_4[/tex]
All outfits
[tex]Sh_1P_1S_1, \\ Sh_1P_1S_2, \\ Sh_1P_1S_3, \\ Sh_1P_1S_4, \\ Sh_1P_2S_1, \\ Sh_1P_2S_2, \\ Sh_1P_2S_3, \\ Sh_1P_2S_4, \\ Sh_2P_1S_1, \\ Sh_2P_1S_2, \\ Sh_2P_1S_3, \\ Sh_2P_1S_4, \\ Sh_2P_2S_1, \\ Sh_2P_2S_2, \\ Sh_2P_2S_3, \\ Sh_2P_2S_4[/tex]