Posted by **betty r** on Thursday, May 3, 2007 at 2:12am.

if you have 6 books how many groups of four different books can you make out of the six?

If we assume that the order we choose those four books doesn't matter then it is

_{n}C

_{r}=

6!/(2!4!)

= ?

Isn't it 6*6*6*6???

## Answer this Question

## Related Questions

- pre calc - A math teacher uses four algebra books, two geometry books, and three...
- MATHS - Mrs.Koh purchased new books for the school library, of which 6 were ...
- math - Of 30 books (15 novels, 10 history books and 5 math books), how many ways...
- algebra - John has 36 books in his locker. He has text books,library books, and ...
- math - lara arranged the books in her bookshelf by size. 2/10 of the books were ...
- Reading - Rosalind Wiseman books Terra Elan McVoy books Susane Colasanti books ...
- math - A student has 4 English books,3 math books,and 5 history books.In how ...
- math - Lan has 6 books for each book he has 2 science books he has 2 animl books...
- College Math - Your small library of books consists of 6 novels, 7 mathematics ...
- math - MEghan had 36 books in her locker. Some were library books, text books ...

More Related Questions