The worst case is when you pull 4 out and have 4 different colors. the 5th sock MUST match one of these. 5 is the answer
Can you put more information into this question
The product is the result of multiplication.
the product of a number and 48 --- 48x ---is (means equals) - 18
so its gonna be:
48x = -18
x = -18/48
x = - 3/8 <== ur number