There are 5 blouses, 4 pants, 3 skirts, and 6 pairs of black shoes. Evita has to choose one blouse, one pair of black pants or a skirt, and a pair of black shoes.
ccccc
Nr. of & Nr. of & Nr. of & Nr. of
Blouse & Pants & Skirt & Shoes
Options & Options & Options & Options
5 & 4 & 3 & 6
Now, we can calculate the total number of options for the bottom part of the outfit.
ccccc
Number of& &Number of&
pants &+ & skirts [0.5em]
4& + & 3 [0.5em]
& 7&
There are 7 options for the bottom part of the outfit. To find out how many options there are, we can now use the Fundamental Counting Principle.
ccccc
Number of & & Number of & &Number of
Blouse & &Bottom & & Shoes
Options & & Options & &Options [0.5em]
5 & * & 7 & * & 6
Therefore, the number of possible work outfits with a white blouse, black pants or a skirt, and black shoes chosen is the product of these three values.
5 * 7 * 6 = 210
