Question 27
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In how many ways can one or more books be chosen from 10 different books?
- A 1,024
- B 100
- C 3,628,800
- D 1,023 Correct
Correct Answer: Option D
Each book is in or out: 2¹⁰ = 1,024
Remove choosing none: 1,023
Trap: 1,024 includes the empty choice.
Answer: 1,023
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