A series is given with one term missing. Choose the correct alternative from…
2025
A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series. JI, LK, NM, ?
- A.
ST
- B.
OP
- C.
QR
- D.
PO
Attempted by 4344 students.
Show answer & explanation
Correct answer: D

Key insight: both the first and the second letters advance by two positions in the alphabet each term.
First letters: J → L → N → P (positions 10 → 12 → 14 → 16), each step +2.
Second letters: I → K → M → O (positions 9 → 11 → 13 → 15), each step +2.
Combine the next letters to get the missing term: P (first) and O (second) → PO.
Answer: PO