Question 12
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In how many ways can 4 of 7 different books be arranged on a shelf?
- A 35
- B 2,401
- C 5,040
- D 840 Correct
Correct Answer: Option D
7P4 = 7 × 6 × 5 × 4 = 840
Trap: 35 only chooses the books.
Answer: 840
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