pouydalpawan pouydalpawan

27-07-2021
Mathematics

contestada

If there are
12 books in the rack, a person has to choose 5
out of them. In how many ways
can he choose books,if one
book is never selected?

Respuesta :

jasongggg jasongggg

27-07-2021

Answer:

462 ways

Step-by-step explanation:

One book never selected means 12 - 1 = 11.

So to find the number of ways, 11C5 which equals to: 11!/(5!(11-5)!) = 462

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