Question 46
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In how many arrangements of the letters of ASSASSIN are no two Ss next to each other?
- A 840
- B 120
- C 60 Correct
- D 30
Correct Answer: Option C
Arrange A, A, I, N: 4!/2! = 12
5 gaps; the four Ss take 4 of them: 5C4 = 5
12 × 5 = 60
Trap: 840 is all arrangements.
Answer: 60
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