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vishal_kothari
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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 three letter computer passwords can be formed (no repetition allowed) with at least one symmetric letter?
 2 years ago
 2 years ago
vishal_kothari Group Title
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 three letter computer passwords can be formed (no repetition allowed) with at least one symmetric letter?
 2 years ago
 2 years ago

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FoolForMath Group TitleBest ResponseYou've already chosen the best response.1
There are 2611 = 15 asymmetric letters; Your answer: \(26 \times 25 \times 24  15 \times 14 \times 13 \)
 2 years ago
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