A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
ABCD, CUKA, ENSX, GGAU, ?
Answer & explanation
Correct answer: option 4
Explanation:
ABCD, CUKA, ENSX, GGAU, ?
The logic followed here is :
A → (+2) → C → (+2) → E → (+2) → G → (+2) → I
B → (-7) → U → (-7) → N → (-7) → G → (-7) → Z
C → (+8) → K → (+8) → S → (+8) → A → (+8) → I
D → (-3) → A → (-3) → X → (-3) → U → (-3) → R
So, the letter-cluster that replaces the (?) to complete the series is "IZIR"