Question
Which of the following letter-clusters will replace the
question mark [?] in the given series to make it logically complete? FQL, DSK, [?], ZWI, XYHSolution
F – 2 = D; D – 2 = B; B – 2 = Z; Z – 2 - X Q + 2 = S; S + 2 = U; U + 2 = W; W + 2 = Y L – 1 = K; K – 1 = J; J – 1 = I; I – 1 = H
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