Mary wants to get her boyfriend a nice birthday present. She has to decide on a choice of one of five books that he would like, one of four ties or one of four X-box games. What is the total number of different outcomes available to her?

Answer: 13 outcomes

Step-by-step explanation:

Given:

She wants to get a gift from the following choices;

- one of five books

- one of four ties

- one of four X-box

Since, the three groups of choices are joined with "OR" but not "AND" that means she is getting just one gift from any of the 3 groups.

Total number of gift she needed = 1

Total number of choices = 3 groups with total of 13 options

N = 13P1 = 13! / (13-1) ! = 13!/12! = 13

N = 13 outcomes.