Question

cell phone models a particular cell phone company offers 5 models of phones, each in 3 different colors and each available with any one of 4 calling plans. how many combinations are possible? the number of possible combinations is \boxed{}

Explanation:

Step1: Identify the number of choices for each category

We have three categories: phone models, colors, and calling plans. The number of phone models is 5, the number of colors is 3, and the number of calling plans is 4.

Step2: Use the multiplication principle

To find the total number of combinations, we multiply the number of choices in each category. So we calculate \( 5\times3\times4 \).

First, calculate \( 5\times3 = 15 \). Then, calculate \( 15\times4 = 60 \).

Answer:

60