A poker hand consists of five cards selected from a 52 card deck. The order of the cards in a poker hand does not matter. A poker hand is called a full house if it has two cards of one rank and three cards of a second rank. For example, a hand consisting of two 7’s and three queens is a full house. How many different full house hands are there?

Respuesta :

Answer: 3744

Step-by-step explanation:

Given : Total card in a deck = 52

The total number of ranks in a deck = 13

Then, the number ways to select a rank = 13

One rank = 4 cards of same rank.

Now, first we need to select two cards of same rank then, the number of ways for this = [tex]^4C_2=\dfrac{4!}{2!(4-2)!}=6[/tex]

Now, the remaining ranks = 12

Again, The number ways to select a rank = 12

Next , we need to select 2 cards of same rank then, the number of ways for this = [tex]^4C_1=\dfrac{4!}{1!(4-1)!}=4[/tex]

Now, the number of  different full house hands are there :_

[tex]13\times6\times12\times4=3744[/tex]