Which letter cluster will replace the question mark (?) to complete the given series?
ACFD, CFHG, ?, GLLM, IONP
Answer & explanation
Correct answer: option 2
Explanation:
ACFD, CFHG, ?, GLLM, IONP
The logic followed here is :
A → (+7) → C → (+7) → E → (+7) → G → (+7) → I
C → (-8) → F → (-8) → I → (-8) → L → (-8) → O
F → (+9) → H → (+9) → J → (+9) → L → (+9) → N
D → (-10) → G → (-10) → J → (-10) → M → (-10) → P
So, the letter-cluster that replaces the (?) to complete the series is "EIJJ"