Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
UY, ZD, EI, JN, ?
Answer & explanation
Correct answer: option 2
Explanation:
UY, ZD, EI, JN, ?
The logic followed here is :
U → (+5) → Z → (+5) → E → (+5) → J → (+5) → O
Y → (+5) → D → (+5) → I → (+5) → N → (+5) → S
So, the letter-cluster that replaces the (?) to complete the series is "OS"