Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
DAG, FCI, ?, JGM, LIO
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. HEK.
Given series: DAG, FCI, ?, JGM, LIO
D + 2 = F, F + 2 = H, H + 2 = J, J + 2 = L
A + 2 = C, C + 2 = E, E + 2 = G, G + 2 = I
G + 2 = I, I + 2 = K, K + 2 = M, M + 2 = O