Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
RN, NP, JR, ?, BV
Answer & explanation
Correct answer: option 4
Explanation:
RN, NP, JR, ?, BV
The logic followed here is :
R → (-4) → N → (-4) → J → (-4) → F → (-4) → B
N → (+2) → P → (+2) → R → (+2) → T → (+2) → V
So, the letter-cluster that replaces the (?) to complete the series is "FT"