Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
BCD, FGH, JKL, NOP, ?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. RST.
Given series: BCD, FGH, JKL, NOP, ?
B + 4 = F, F + 4 = J, J + 4 = N, N + 4 = R
C + 4 = G, G + 4 = K, K + 4 = O, O + 4 = S
D + 4 = H, H + 4 = L, L + 4 = P, P + 4 = T