Solution:
Given:
[tex]\begin{gathered} \text{Cats for sale=5} \\ \text{Cat food for sale=10} \\ \text{Kitty litter for sale=4} \end{gathered}[/tex]If one of each item is to be bought, then the possible different combinations are;
[tex]\begin{gathered} ^5C_1\text{.}^{10}C_1\text{.}^4C_1=5\times10\times4 \\ =200\text{ posible combinations} \end{gathered}[/tex]Therefore, there are 200 possible combinations if one of each item is gotten.
