Which letter cluster will replace the question mark (?) to complete the given series?
ETRE, AZJG, WFBI, SLTK, ?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. ORLM.
ETRE, AZJG, WFBI, SLTK, ?
E - 4 = A, A - 4 = W, W - 4 = S, S - 4 = O
T + 6 = Z , Z + 6 = F, F + 6 = L, L + 6 = R
R - 8 = J, J - 8 = B, B - 8 = T, T - 8 = L
E + 2 = G, G + 2 = I, I + 2 = K, K + 2 = M