Question

A team of 3 students is to be formed from a class of 25 students. How many ways are there to form this team if there is 1 team leader, 1 scribe and 1 timekeeper in the team and each person can only perform one role at a time?

Answer 1

you use permutations here
\[nPr = \frac{n!}{(n-r)!}\]
therefore
\[25P3 = \frac{25!}{(25-3)!}\]
\[\implies \frac{25!}{22!}\]

Answer 2

do you get it @ravin1991

Answer 3

so my final answer i leave it it as 25!/22!

Answer 4

no..you need to solve that

Answer 5

hmm ok!

Answer 6

thanks!