CAT Quant Practice Problems

Question: Each of the 11 letters A, H, I, M, O, T, U, V, W, X and Z appears same when looked at in a mirror. They are called symmetric letters. Other letters in the alphabet are asymmetric letters.

How many four-letter computer passwords can be formed using only the symmetric letters (no repetition allowed)?

  1. 7920
  2. 330
  3. 14640
  4. 4,19,430

Correct Option:1

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CAT Quant Practice Problems
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