Find the 25th word if the word JACKED is arranged in dictionary order.
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Find the 25th word if the word JACKED is arranged in dictionary order.
- A.
ACDEJK
- B.
ADCEJK
- C.
AECDJK
- D.
AEDCJK
Attempted by 9 students.
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Correct answer: B
Arrange the letters of JACKED in dictionary order: A, C, D, E, J, K. Counting permutations lexicographically gives the 25th word as ADCEJK.