math
well isnt it three students just go into each of the three groups so then all the nine students are split up evenly?
did that help?
I do not understand.. Hmm is it 9c3?
9 choose 3
\(\frac{9!}{3!(9-3)!}\)
\(\dfrac{n!}{k!(n-k)!}\) tells you how many ways you can choose k things from n things.
The number of ways 9 students can be partitioned into three teams containing 3 students each is found as follows: There are 9 choices for the first student of team A, 8 choices for the second student of team A and 7 choices for the third student of team A. The order of the choices does not matter. Therefore the number of ways of choosing team A is given by \[\large \frac{9\times8\times7}{3!}\] Having chosen team A, the number of ways of choosing team B is given by \[\large \frac{6\times5\times4}{3!}\] and the number of ways of choosing team C is given by \[\large \frac{3\times2\times1}{3!}\] Finally the total number of ways is given by \[\large \frac{9!}{3!3!3!}\]
Thank you so much guys.. =)
You're welcome :)
Join our real-time social learning platform and learn together with your friends!