Answer:
12
Step-by-step explanation:
Permutations Formula: n!/(n-r)! = nPr
Where:
n = total number of objects
r = number of objects selected
Because this is odd sock day, he only has 4 objects to choose from, not 8, as red red, yellow yellow ect. cant be "odd" pairs.
Therefore solve 4!/(4-2)!
= 12
