SOLUTION: how many ways can 3 kids be selected from 12?

Question 704507: how many ways can 3 kids be selected from 12?
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
There are 12 ways to choose the first kid

There are 12-1 = 11 ways to choose the next kid (assuming the first kid can't be placed back in the mix and potentially chosen again)

There are 12-2 = 10 ways to choose the third kid.

So there are 12*11*10 = 1320 different ways to choose 3 kids where order matters.

If order does not matter, then you'll have to divide by 6 because there are 3! = 6 ways to arrange any particular group. So if order does not matter, then there are 1320/6 = 220 different ways.

Summary:

If order does matter, then there are 1320 different ways

If order does NOT matter, then there are 220 different ways

--------------------------------------------------------------------------------------------------------------

If you need more help, you can email me at jim_thompson5910@hotmail.com

To find other ways to contact me, you can also visit my website: http://www.freewebs.com/jimthompson5910/home.html

Thanks,

Jim

--------------------------------------------------------------------------------------------------------------
RELATED QUESTIONS
In How many ways can a panel of 5 students to be seleCted from 8 kids .if a particular... (answered by ewatrrr)

In how many ways can 12 jurors and 3 alternate jurors be selected from a group of 25... (answered by stanbon)

How many ways 20 oranges can be distributed among 3... (answered by ewatrrr)

How many ways can five different television programs be selected from 12... (answered by jorel1380)

how many ways can a 4 person subcommitte be selected from a committee of 12... (answered by ikleyn)

In how many ways 12 different balls can be distributed 3 different kids such that a kid... (answered by brichantai)

How many ways can 20 diseases be selected from... (answered by stanbon)

In how many ways can a committee of 3 be selected from a group of 5? (answered by rapaljer,CharStar)

in how many ways can 3 students be selected from a group of 5 students? (answered by ewatrrr)