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21. Letter series

Which is the missing letter? (E K D L C M B N ?) A)A  B)B  C)F  D)H  E)P.

There are two simultaneous sequences.

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kira mira kjitsays...

A. The full sequence is A, B, C, D and E

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George Fienessays...

N. Two separate sequences. One ascending, and the other descending, KLMN.

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