Question
Select the letter cluster from among the given option
that can replace the question mark (?) in the following series. FOC, ISZ, LWW, OAT, ?Solution
F + 3 = I, I + 3 = L, L + 3 = O, O + 3 = R O + 4 = S, S + 4 = W, W + 4 = A, A + 4 = E C - 3 = Z, Z - 3 = W, W - 3 = T, T - 3 = Q
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