What comes next in the series? 10, 21, 43, 87, 175, ?
- A351
- B361
- C348
- D353
Show answer
Answer: (A) 351
Each term is (previous × 2) + 1.
Agniveer Army Series Questions with Answers & Explanations
15 Series questions from the Logical Reasoning section of Agniveer Army, each with the correct answer and a worked explanation. Try each question first, then tap Show answer to check. When you're ready, take the timed chapter-wise test to see your all-India rank.
What comes next in the series? H, L, P, T, ?
- AZ
- BY
- CX
- DW
Show answer
Answer: (C) X
Each letter moves 4 places forward in the alphabet.
What comes next in the series? 7, 21, 63, 189, 567, ?
- A1701
- B1698
- C1702
- D1711
Show answer
Answer: (A) 1701
Each term is multiplied by 3.
What comes next in the series? I, K, M, O, ?
- AR
- BP
- CS
- DQ
Show answer
Answer: (D) Q
Each letter moves 2 places forward in the alphabet.
What comes next in the series? 2, 10, 18, 26, 34, ?
- A47
- B37
- C42
- D36
Show answer
Answer: (C) 42
Each term increases by 8.
What comes next in the series? B, F, J, N, ?
- AS
- BT
- CR
- DQ
Show answer
Answer: (C) R
Each letter moves 4 places forward in the alphabet.
What comes next in the series? 7, 9, 20, 22, 33, ?
- A37
- B35
- C34
- D29
Show answer
Answer: (B) 35
The differences alternate between +2 and +11.
What comes next in the series? A, E, I, M, ?
- AR
- BS
- CP
- DQ
Show answer
Answer: (D) Q
Each letter moves 4 places forward in the alphabet.
What comes next in the series? 14, 21, 28, 35, 42, ?
- A39
- B49
- C50
- D54
Show answer
Answer: (B) 49
Each term increases by 7.
What comes next in the series? F, I, L, O, ?
- AT
- BQ
- CS
- DR
Show answer
Answer: (D) R
Each letter moves 3 places forward in the alphabet.
Ready for the real thing?
Timed Logical Reasoning test · 5 questions · instant rank
What comes next in the series? 6, 8, 12, 18, 26, ?
- A39
- B36
- C35
- D41
Show answer
Answer: (B) 36
The differences increase by 2 each time.
What comes next in the series? G, K, O, S, ?
- AV
- BY
- CX
- DW
Show answer
Answer: (D) W
Each letter moves 4 places forward in the alphabet.
What comes next in the series? 11, 18, 25, 32, 39, ?
- A49
- B41
- C46
- D48
Show answer
Answer: (C) 46
Each term increases by 7.
What comes next in the series? E, G, I, K, ?
- AO
- BM
- CL
- DN
Show answer
Answer: (B) M
Each letter moves 2 places forward in the alphabet.
What comes next in the series? 64, 81, 100, 121, 144, ?
- A171
- B169
- C168
- D179
Show answer
Answer: (B) 169
The terms are consecutive perfect squares.
These are RankerClub practice questions written in the Agniveer Army pattern. They are not official SSC/IBPS/RRB papers.
