Answer: 180
Explanation:
Given : A bag contains three red marbles, five green ones, one lavender one, two yellows, and six orange marbles.
The number of ways to choose one thing out of n is given by:-
![^nC_1=(n!)/(1!(n-1)!)=n](https://img.qammunity.org/2020/formulas/mathematics/college/19h7pyfc9lx7p3e99q1z6ldqxw8fq432dk.png)
Number of ways to choose one red marble out of 3=
![^3C_1=3](https://img.qammunity.org/2020/formulas/mathematics/college/dkyhou9v6dpifxqfg7p9u1c9w676jzo7j7.png)
Number of ways to choose one green marble out of 5=
![^5C_1=5](https://img.qammunity.org/2020/formulas/mathematics/college/fcojgm04l4nuger7euuxn83w5ahx96l892.png)
Number of ways to choose one yellow marble out of 2=
![^2C_1=2](https://img.qammunity.org/2020/formulas/mathematics/college/c3wlqrobumzm6yo8tfybjnv1vhiutyk747.png)
Number of ways to choose one orange marble out of 6=
![^6C_1=1](https://img.qammunity.org/2020/formulas/mathematics/college/ai8gu9md9dipv8kf5t06afhq0y8zjgng7u.png)
By using the Fundamental counting principle , we have
The number of sets of four marbles include one of each color other than lavender will be :-
![3*5*2*6=180](https://img.qammunity.org/2020/formulas/mathematics/college/hzdgkobacvft0stxcqp749kka4ck6huvhu.png)
Hence, the number of sets of four marbles include one of each color other than lavender =180