Which of the following terms will replace the question mark (?) in the given series ?
AVTE, CTRG, ERPI, GPNK, ?
Answer & explanation
Correct answer: option 1

Explanation:
AVTE, CTRG, ERPI, GPNK, ?
The logic followed here is :
A → (+2) → C → (+2) → E → (+2) → G → (+2) → I → (+2)
V → (-2) → T → (-2) → R → (-2) → P → (-2) → N → (-2)
T → (-2) → R → (-2) → P → (-2) → N → (-2) → L → (-2)
E → (+2) → G → (+2) → I → (+2) → K → (+2) → M → (+2)
So, the letter-cluster that replaces the (?) to complete the series is "INLM"