Logical Reasoning Letter and symbol series

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Logical Reasoning – Letter and Symbol Series for FSC & Entry Test Preparation

Letter and Symbol Series is an important topic in Logical Reasoning for FSC board exams and competitive entry tests such as MDCAT, NUMS, AKU, NUST, ECAT, and NTS exams. This section focuses on identifying patterns, sequences, and relationships in letters, numbers, and symbols. Mastery of series-based questions is crucial for improving speed and accuracy in the reasoning section of entry tests.




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Complete the sequence:

2, 15, 41, 80, _____

NUMS 2014
Logical Reasoning
Letters and Symbols Series
Elimination Tool:

1/38

QAR, RAS, SAT, TAU, _____

2/38

CMM, EOO, GQQ, _____, KUU

PMC Sample 3
Logical Reasoning
Letters and Symbols Series
Elimination Tool:

3/38

P5QR, P4QS, P3QT, _____, P1QV

4/38

What number comes next in the following series? 34 24 16 10 6

NUMS 2014
Logical Reasoning
Letters and Symbols Series
Elimination Tool:

5/38

ELFA, GLHA, ILJA, _____, MLNA

6/38

CMM, EOO, GQQ, _____, KUU

PMC Practice 6
Logical Reasoning
Letters and Symbols Series
Elimination Tool:

7/38

3, 6, 18, 72, ____

NUMS 2014
Logical Reasoning
Letters and Symbols Series
Elimination Tool:

8/38

P3C, R5F, T8I, V12L, ___?

PMC Sample 1
Logical Reasoning
Letters and Symbols Series
Elimination Tool:

9/38

B2CD, _____, BCD4, B5CD, BC6D

10/38

Complete the series A3.3, B6.6, C9.9, ____?

PMC Practice 13
Logical Reasoning
Letters and Symbols Series
Elimination Tool:

11/38

JAK, KBL, LCM, MDN, _____

12/38

Find the next number in the following sequence:

234234523456234567234567

PMC Sample 1
Logical Reasoning
Letters and Symbols Series
Elimination Tool:

13/38

Complete the series A25, B625, C15625, ________?

PMC Practice 2
Logical Reasoning
Letters and Symbols Series
Elimination Tool:

14/38

QPO, NML, KJI, _____, EDC

15/38

Complete the series A2.5, B5, C7.5, _____ ?

PMC Practice 4
Logical Reasoning
Letters and Symbols Series
Elimination Tool:

16/38

Look at this series 80, 10, 70, 15, 60. What number should come next?

PMC Sample 1
Logical Reasoning
Letters and Symbols Series
Elimination Tool:

17/38

SCD, TEF, UGH, ____, WKL

18/38

Complete the series: AB, EF, __ ,MN

PMC Practice 13
Logical Reasoning
Letters and Symbols Series
Elimination Tool:

19/38

CMM, EOO, GQQ, _____, KUU

PMC Practice 3
Logical Reasoning
Letters and Symbols Series
Elimination Tool:

20/38

FAG, GAF, HAI, IAH, ____

21/38

BCB, DED, FGF, HIH, ___

22/38

Find the missing series

2, 3, 8, 63, ?

NUMS 2015
Logical Reasoning
Letters and Symbols Series
Elimination Tool:

23/38

If 7(x-2) = 3x – 2. What is the value of x?

NUMS 2014
Logical Reasoning
Letters and Symbols Series
Elimination Tool:

24/38

Look at this series: 12, 11, 13, 12, 14, 13, … What number should come next?

PMC Sample 3
Logical Reasoning
Letters and Symbols Series
Elimination Tool:

25/38

Complete the series. F16, H32, J48, _______.

PMC Practice 15
Logical Reasoning
Letters and Symbols Series
Elimination Tool:

26/38

CMM, EOO, GQQ, _____, KUU

27/38

Find the missing series:

3, 12, 27, 48, 75, 108, ?

NUMS 2014
Logical Reasoning
Letters and Symbols Series
Elimination Tool:

28/38

DEF, DEF2, DE2F2, _____, D2E2F3

29/38

ZA5, Y4B, XC6, W3D, _____

30/38

12,32,72,152 _____

NUMS 2014
Logical Reasoning
Letters and Symbols Series
Elimination Tool:

31/38

Complete the series A2, B4, C8, D16, E?

PMC Practice 1
Logical Reasoning
Letters and Symbols Series
Elimination Tool:

32/38

Look at this series 14, 28, 20, 40, 32, 64. What number should come next?

PMC Practice 3
Logical Reasoning
Letters and Symbols Series
Elimination Tool:

33/38

ZA5, Y4B, XC6, W3D, _____

PMC Sample 3
Logical Reasoning
Letters and Symbols Series
Elimination Tool:

34/38

Which one of the following have four sides?

PMC Practice 17
Logical Reasoning
Letters and Symbols Series
Elimination Tool:

35/38

A series is given with missing terms. Choose the correct alternative from the given ones that will complete the series.

4E, 8I, 13N, 19T, ?

NUMS 2015
Logical Reasoning
Letters and Symbols Series
Elimination Tool:

36/38

Carefully Look at the sequence of symbols provided below to assess the specific pattern. and then select the correct pattern.

37/38

8, 10, 14, 18, ___ , 34, 50 , 66:

NUMS 2014
Logical Reasoning
Letters and Symbols Series
Elimination Tool:

38/38

Importance of Letter and Symbol Series

Letter and symbol series questions assess a student’s ability to recognize patterns, predict the next element in a sequence, and apply logical rules. Practicing these series enhances analytical thinking, pattern recognition, and problem-solving skills, which are essential for both board exams and competitive entry tests.

Practice for Exams

Regular practice of letter and symbol series improves concentration, logical reasoning, and decision-making speed. PLS Academy provides chapter-wise exercises, solved past papers, and exam-oriented MCQs to help students revise effectively. Consistent preparation builds confidence, accuracy, and ensures better performance in the Logical Reasoning section of FSC exams and competitive entry tests.

JazakAllah.

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