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

\[25\times 24\times 23\]

Answer 2

May i know how did you get it?

Answer 3

called "counting principle" if there are n ways to do one thing and n to do the other then there are
\[m\times n\] ways to do them both

Answer 4

so reason as follows. you have 25 choices for "team leader". once team leader is chosen you then have 24 choices for "scribe" (who writes this stuff?)
so far 25*24
and once they are chosen you have 23 ways to pick timekeeper. so answer is as i wrote above

Answer 5

oh thanks :)