Staff Selection Commission (SSC) conducts a national level exam, Combined Higher Secondary Level Exam (12th Level), for recruitment to the post of Data Entry Operator (DEO) and Lower Division Clerk (LDC).

The candidates are hired on the basis of marks scored in the test. It is a highly competitive exam with lakhs of candidates applying for it. We are going to discuss the detailed syllabus with all the topics asked in different parts of the written exam:


Part I - General Intelligence:

1. Semantic Analogy

2. Symbolic/Number Analogy

3. Figural Analogy

4. Semantic Classification

5. Symbolic/Number Classification

6. Figural Classification

7. Semantic Series

8. Number Series

9. Figural Series

10. Problem Solving

11. Word Building

12. Coding and de-coding

13 Numerical operations

14. Symbolic operations

15 Trends

16. Space Orientation

17. Venn Diagrams

18. Drawing inferences

19. Punched hole/pattern-folding & unfolding

20. Figural Pattern – folding and completion

21. Embedded figures

22. Critical Thinking

23 Emotional Intelligence

24. Social Intelligence

25. Other sub-topics, if any


Part II - English Language:

1. Spot the Error

2. Fill in the Blanks

3. Synonyms/Homonyms

4. Antonyms

5. Spellings/Detecting Mis-spelt words

6. Idioms & Phrases

7. One word substitution

8. Improvement of Sentences

9. Active/Passive Voice of Verbs

10. Conversion into Direct/Indirect narration

11. Shuffling of Sentence parts

12. Shuffling of Sentences in a passage

13. Cloze Passage

14. Comprehension Passage


Part III - Quantitative Aptitude:


C.1.1 Number Systems:

1. Computation of Whole Number

2. Decimal and Fractions

3. Relationship between numbers

C.1.2 Fundamental arithmetical operations:

1. Percentages

2. Ratio and Proportion

3. Square roots

4. Averages

5. Interest (Simple and Compound)

6. Profit and Loss

7. Discount

8. Partnership Business

9. Mixture and Alligation

10. Time and distance

11. Time and work


C.2.1 Basic algebraic identities of School Algebra (and their simple applications) e.g. Formulas for (a+b)2, (a-b)2, (a+b)3, (a-b) 3 , a3 -b3, a3 +b3, a2 –b2; if a+b+c=0, then a3 +b3 +c3 =3abc etc. and Elementary surds (simple problems)

C.2.2 Graphs of Linear Equations


Familiarity with elementary geometric figures and facts:

C.3.1 Triangle and its various kinds of centres viz. Centroid, In-centre, Orthocentre, Circumcentre

C.3.2 Congruence and similarity of triangles

C.3.3 Circle and its chords, tangents, angles subtended by chords of a circle, common tangents to two or more circles.


C.4.1 Triangle, Quadrilaterals

C.4.2 Regular Polygons (sum of the internal angles of a polygon)

C.4.3 Circle

C.4.4 Right Prism

C.4.5 Right Circular Cone

C.4.6 Right Circular Cylinder

C.4.7 Sphere, Hemispheres

C.4.8 Rectangular Parallelepiped

C.4.9 Regular Right Pyramid with triangular or square Base


C.5.1 Trigonometry (for acute angles a with 0= a =90), Trigonometric ratios, Degree and Radian Measures, Standard Identities like sin2 a + Cos2 a = 1 etc.

C.5.2 Complementary Angles, Heights and Distances (simple problems only)


Use of Tables and Graphs:

C.6.1 Histogram

C.6.2 Frequency polygen

C.6.3 Bar-diagram

C.6.4 Pic-chart


Part IV - General Awareness:

Questions are designed to test the  candidate’s general awareness of the environment around him and its application to society. Questions are also designed to test knowledge of current events and of such matters of everyday observation and experience in their scientific aspect as may be expected of an educated person. The test will also include questions relating to India and its neighbouring countries especially pertaining to History, Culture Geography, Economic Scene, General policy and scientific research.

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