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# Introduction & Examples: Letter Series - CSAT Preparation - UPSC

## Introduction

• From the above diagram, you can easily see the position and opposite word of each alphabet.
Example: Position of D is 4 and opposite letter to D is W and position of W is 23.
• Position of J is 10 and opposite letter of J is Q and position of Q is 17 and so on

## Examples

Find the letter in place of the question mark (?) in the series given below:

Q1. B, F, ?, N, R

a) G

b) K

c) J

d) L

e) None of The Above

Ans: Option C

Q2. P, ?, J, G, D, A

a) Q

b) N

c) K

d) M

e) None of The Above

Ans: Option D

Q3. ?, E, G, J, N

a) A

b) B

c) D

d) Z

e) None of The Above

Ans: Option C

Q4. X, F, Y, G, ?, H

a) Z

b) A

c) B

d) Y

e) None of The Above

Ans: Option A

Q5. B, B, A, D, ?, F

a) B

b) A

c) Z

d) C

e) None of The Above

Ans: Option C

Question for Introduction & Examples: Letter Series
Try yourself:ZA5, Y4B, XC6, W3D, _____

Q.6. In this series, you will be looking at both the letter pattern and the number pattern. Fill the blank in the middle of the series or end of the series.

1. SCD, TEF, UGH, ____, WKL

A.   CMN

B.   UJI

C.   VIJ

D.   IJT

Explanation: There are two alphabetical series here. The first series is with the first letters only: STUVW. The second series involves the remaining letters: CD, EF, GH, IJ, KL.

Q.7. B2CD, _____, BCD4, B5CD, BC6D

A.    B2C2D

B.    BC3D

C.    B2C3D

D.    BCD7

Explanation: Because the letters are the same, concentrate on the number series, which is a simple 2, 3, 4, 5, 6 series, and follows each letter in order.

Question for Introduction & Examples: Letter Series
Try yourself:QPO, NML, KJI, _____, EDC

Q.8. FAG, GAF, HAI, IAH, ____

A.    JAK

B.    HAL

C.    HAK

D.    JAI

Explanation: The middle letters are static, so concentrate on the first and third letters. The series involves an alphabetical order with a reversal of the letters. The first letters are in alphabetical order: F, G, H, I , J. The second and fourth segments are reversals of the first and third segments. The missing segment begins with a new letter.

Q.9. ELFA, GLHA, ILJA, _____, MLNA

A.    OLPA

B.    KLMA

C.    LLMA

D.    KLLA

Explanation: The second and fourth letters in the series, L and A, are static. The first and third letters consist of an alphabetical order beginning with the letter E.

Q.10. CMM, EOO, GQQ, _____, KUU

A.    GRR

B.    GSS

C.    ISS

D.    ITT

Explanation: The first letters are in alphabetical order with a letter skipped in between each segment: C, E, G, I, K. The second and third letters are repeated; they are also in order with a skipped letter: M, O, Q, S, U.

Question for Introduction & Examples: Letter Series
Try yourself:JAK, KBL, LCM, MDN, _____

Q.11. BCB, DED, FGF, HIH, ___

A.    JKJ

B.    HJH

C.    IJI

D.    JHJ

Explanation: This series consists of a simple alphabetical order with the first two letters of all segments: B, C, D, E, F, G, H, I, J, K. The third letter of each segment is a repetition of the first letter.

Q.12. QAR, RAS, SAT, TAU, _____

A.    UAV

B.    UAT

C.    TAS

D.    TAT

Explanation: In this series, the third letter is repeated as the first letter of the next segment. The middle letter, A, remains static. The third letters are in alphabetical order, beginning with R.

The document Introduction & Examples: Letter Series | CSAT Preparation - UPSC is a part of the UPSC Course CSAT Preparation.
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## FAQs on Introduction & Examples: Letter Series - CSAT Preparation - UPSC

 1. What are letter series?
Ans. Letter series refer to a sequence of letters arranged in a particular manner, where each letter is related to the other letters in the sequence based on a specific pattern or rule.
 2. What are the different types of letter series?
Ans. There are several types of letter series, including alphabetical series, reverse alphabetical series, mixed series, missing letter series, and jumbled letter series.
 3. What is the importance of letter series in exams?
Ans. Letter series are commonly used in various competitive exams to test a candidate's ability to recognize patterns and sequences. It helps to evaluate a candidate's analytical and logical reasoning skills, which are essential for success in several job roles.
 4. How can one solve letter series questions effectively?
Ans. To solve letter series questions effectively, one should carefully analyze the given sequence and identify the pattern or rule that connects the letters. Then, apply the same pattern or rule to determine the missing letter or the next letter in the series.
 5. Are there any tips to improve one's performance in letter series questions?
Ans. Yes, some useful tips to improve one's performance in letter series questions include practicing regularly, identifying common patterns, using elimination techniques, and avoiding guesswork. Additionally, it is essential to manage time effectively and remain calm and focused during the exam.

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