Question

Dustin has five hats, five shirts, five pairs of pants, and five pairs of shoes; he has one of each in blue, green, gray, silver, and gold (his five favorite colors). Dustin is picky about what he wears: he insists on his shoes being the same color as at least two other articles of clothing in the outfit. However, he refuses to wear all silver or all gold (because that's tacky). How many possible outfits can Dustin wear?

Answer 1

The number of possible outfits Dustin can wear is 73 outfits

Explanation:

The information given are;

The number of hats Dustin has = 5

The number of shirts Dustin has = 5

The number of pants Dustin has = 5

The number of shoes Dustin has = 5

The colors of Dustin's clothing are blue, green, gray, silver, and gold

Given that the shoes go with at least two other clothing of the same color, we have;

The number of ways the color of the shoes can be selected = 5 ways

The number of ways of selecting the same color for 2 of the remaining 3 clothing = 3 ways

The number of ways of selecting the color of the fourth clothing = 5 ways

The total number of ways = 5 × 3 × 5 = 75 ways

The number of ways in which all silver can be selected = 1 way

The number of ways in which all gold can be selected = 1 way

Since Dustin refuses to wear all silver and all gold, the total number of ways the outfits can be selected = 75 - 1 - 1 = 73 ways = 73 is the number of possible outfits

Therefore, the number of possible outfits Dustin can wear = 73 outfits.