Which of the following letter-clusters will replace the question mark (?) in the given series?
ZG, BD, CX, EO, FC, ?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. HN.
Given series: ZG, BD, CX, EO, FC, ?
Z + 2 = B; B + 1 = C; C + 2 = E; E + 1 = F; F + 2 = H
G - 3 = D; D - 6 = X; X - 9 = O; O - 12 = C; C - 15 = N