@Marco_reus123's post

in Official Quants Group|CAT:2019|MBA:2020-2022
Updated yesterday

If strings of seven letters are formed by choosing alphabets allowing for repetition, how many of these strings would be palindromes?

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2 comments
TanujA3
@TanujA3  ·  416 karma

26*26*26*26.

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Marco_reus123
@Marco_reus123  ·  20 karma

@TanujA3 thanks. I got it. I was thinking of 26*25*24*23 but then it says that repetition is allowed

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