Which letter cluster will replace the question mark (?) to complete the given series?
XERJ, THPK, ?, LNLM, HQJN
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. PKNL.
X - 4 = T; T - 4 = P; P - 4 = L; L - 4 = H
E + 3 = H; H + 3 = K; K + 3 = N; N + 3 = Q
R - 2 = P; P - 2 = N; N - 2 = L; L - 2 = J
J + 1 = K; K + 1 = L; L + 1 = M; M + 1 = N