- A70
- B126
- C56
- D84
Step-by-Step Solution
Removing the barred book leaves 8 books to choose from: C(8,4) = 70. The value 126 = C(9,4) ignores the restriction.
Answer: A) 70
From a shelf of 9 books, 4 books are to be selected so that one particular book is never selected. How many ways are there?
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