# A customer in a computer store can choose one of four monitors, one of three keyboards, and one of five computers. How do you determine the number of possible system configurations?

##### 1 Answer

Dec 31, 2017

60

#### Explanation:

**Given:**

Monitors: 1 of 4

Keyboards: 1 of 3

Computers: 1 of 5

Notice the pattern:

I can pair 4 monitors with first keyboard. Then once more 4 monitors but now with the second keyboard. Then again with the third keyboard.

That is *or* Monitors

If we include computers into the pattern we get:

Monitors x Keyboards x Computers

We have 60 different possibilities of choosing monitors, keyboards and computers.