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17 votes
How many different selections of 4 books can be made from a bookcase displaying 12 books?

User MivaScott
by
3.1k points

2 Answers

4 votes

Answer:

495

Explanation:

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

User Thomas Turner
by
3.6k points
3 votes

Answer:

495

Explanation:

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

User Anton Kupias
by
3.8k points