Question

Betsy is making a flag. She can choose three colors from red, white, blue and yellow. How many choices does Betsy have?

Answer 1

I hope only 4 (not considering the arrangements) ie: Red, White, blue
                                                                           Red, Blue, Yellow
                                                                           Red, White, Yellow
                                                                            White, blue, Yellow 

Answer 2

Answer:

Betsy can have 4 choices.

Step-by-step explanation:

Given :Betsy can choose three colors from red, white, blue and yellow.

To Find :How many choices does Betsy have?

Solution:

Total colors = 4

No. of colors can be used for flag = 3

So, No. of ways of choosing colors flag = $^4C_3$

                                                                 $=\frac{4!}{3!(4-3)!}$

                                                                 $=\frac{4!}{3!(1)!}$

                                                                 $=4$

Hence Betsy can have 4 choices.