Question

You own 6 hats and are taking 4 on vacation. In how many ways can you choose 4 hats from the 6?

Answer 1

Your answer is A. 15 

Answer 2

Answer:

Option B is the answer.

Step-by-step explanation:

I own 6 hats and i am taking 4 hats on vacations.

I have to find the number of ways that I can choose 4 hats out of 6.

In this question we will apply the combination rule.

So by combination rule number of ways to choose hats will be $^{6}C_{4}$

$^{6}C_{4}=\frac{6!}{(6-4)!(4)!}$

$=\frac{6\times 5\times 4!}{2!\times 4!}$

$=\frac{30}{2}$

=15

Therefore, option A. 15 will be the answer.