Question

A physical education class has 16 students. how many ways are there to create a four-person team for a game ​

Answer 1

Answer:

1820 ways  

Explanation:

Using combination formula

$nCr=\frac{n!}{(n-r)!r!}$

n = 16   r= 4  

$16C4=\frac{16!}{(16-4)!4!}$

$16C4=\frac{16!}{(12)!4!}$

$16C4=\frac{16!}{(12)!4!}$

$16C4=\frac{16!}{479001600·24}$

$16C4=\frac{20922789888000}{11,496,038,400}$

16С4 = 1820 ways  

Answer 2

Answer:

1820

Explanation:

question 2 is less than