Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
BY, ?, DW, EV, FU
Answer & explanation
Correct answer: option 4
Explanation:
BY, ?, DW, EV, FU
The logic followed here is :
B → (+1) → C → (+1) → D → (+1) → E → (+1) → F
Y → (-1) → X → (-1) → W → (-1) → V → (-1) → U
So, the letter-cluster that replaces the (?) to complete the series is "CX"