Question

A school'd academic team consists of 6 students, but only 3 of them can participate. How many different 3 person teams can be formed from the 6 students?

Answer 1

Have you learned C\[C _{b}^{a}\]

Answer 2

no

Answer 3

OK I will think another way to tell you

Answer 4

let make it easier
four boys and two of them participate
how many ways

Answer 5

2?

Answer 6

your have four choices when you choose the first boy, right?

Answer 7

I mean you have to choose one boy first and four is the number of your choice

Answer 8

your choice can be 12 13 14 23 24 34

Answer 9

21 31 41 32 42 43 is also your choices
because the first and the second is not the same

Answer 10

ok i get it thanks