One or more options correct
Which of the following statements is(are) correct?
- A. The number of -digit even numbers with distinct digits that can be formed from the digits is
- B. The number of -digit numbers with distinct digits formed from that are divisible by is
- C. The number of distinct arrangements of all letters of the word LEVEL is
- D. The number of distinct arrangements of all letters of LEVEL in which the two E's are not adjacent is
Show answer and solution
Answer: A
(A) True: units digit from in ways, remaining three places from the other digits in ways: . (B) False: enumerating digit sets with sum divisible by (with non-zero leading digit) gives , not . (C) False: . (D) False: glue the two E's: arrangements with E's together, so have them apart, not . Only A is correct.
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