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riadik2000 [5.3K]

2 years ago

10

There are 10 books on a shelf, of which 4 are paperbacks and 6 are hardbacks. How many possible selections of 5 books from the s

helf contain at least one paperback and at least one hardback? A75 b120 c210 d246 e252

1 answer:

FinnZ [79.3K]2 years ago

7 0

The answer is d (246)

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As per given , we have

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