93,772 views
45 votes
45 votes
How many different selections of 4 books can be made from a bookcase displaying 12 books?

User Cello
by
2.6k points

2 Answers

11 votes
11 votes

Answer:

495

Explanation:

12C4 = 12*11*10*9/(4*3*2*1) = 495

User Electrino
by
3.1k points
23 votes
23 votes

Answer:

495

Explanation:

12C4 = 12*11*10*9/(4*3*2*1) = 495

User Sheffali
by
3.0k points