## CDS WRITTEN EXAM

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### IMPORTANT INFORMATION FOR CDS EXAMINATION

### CDS Exam Pattern

The Competitive examination comprises:

- Written examination
- Interview for intelligence and personality test – SSB interview at one of the Services Selection Centres

The subjects of the written examination, the time allowed and the maximum marks allotted to each subject will be as follows:

(a) For Admission to Indian Military Academy, Indian Naval Academy and Air Force Academy:

(b) For Admission to Officers’ Training Academy:

Maximum marks allotted to the written exam and the interviews will be equal for each course i.e. the maximum marks allotted to the written exam and the interviews will be 300, 300, 300 and 200 each for admission to the Indian Military Academy, Indian Naval Academy, Air Force Academy and Officers’ Training Academy respectively

The papers in all the subjects will consist of objective type questions only.

The question papers (Test Booklets) of General Knowledge and Elementary Mathematics will be set bilingually in Hindi as well as English.

**STANDARD AND SYLLABUS OF THE EXAMINATION**

###### – STANDARD

The standard of the papers in Elementary Mathematics will be of Matriculation level.

The standard of papers in other subjects will approximately be such as may be expected of a graduate of an Indian University.

###### – SYLLABUS

**ENGLISH (Code No. 01)**

- General Knowledge including knowledge of current events and of such matters of everyday observation and experience in their scientific aspects as may be expected of an educated person who has not made a special study of any scientific subject.
- The paper will also include questions on History of India and Geography of a nature which candidate should be able to answer without special study.

**ELEMENTARY MATHEMATICS (Code No. 03)**

**ARITHMETIC **

Number System—Natural numbers, Integers, Rational and Real numbers.

- Fundamental operations, addition, substraction, multiplication, division, Square roots, Decimal fractions. Unitary method, time and distance, time and work, percentages, applications to simple and compound interest, profit and loss, ratio and proportion, variation.
- Elementary Number Theory—Division algorithm. Prime and composite numbers.
- Tests of divisibility by 2, 3, 4, 5, 9 and 11. Multiples and factors. Factorisation Theorem. H.C.F. and L.C.M. Euclidean algorithm. Logarithms to base 10, laws of logarithms, use of logarithmic tables.

**ALGEBRA**

- Basic Operations, simple factors, Remainder Theorem, H.C.F., L.C.M., Theory of polynomials, solutions of quadratic equations, relation between its roots and coefficients (Only real roots to be considered).
- Simultaneous linear equations in two unknowns—analytical and graphical solutions. Simultaneous linear inequations in two variables and their solutions. Practical problems leading to two simultaneous linear equations or inequations in two variables or quadratic equations in one variable & their solutions.
- Set language and set notation, Rational expressions and conditional identities, Laws of indices.

**TRIGONOMETRY**

- Sine ×, cosine ×, Tangent × when 0° < × < 90° Values of sin ×, cos × and tan ×, for ×= 0°, 30°, 45°, 60° and 90°
- Simple trigonometric identities.
- Use of trigonometric tables.
- Simple cases of heights and distances.

**GEOMETRY**

- Lines and angles, Plane and plane figures,
- Theorems on (i) Properties of angles at a point, (ii) Parallel lines, (iii) Sides and angles of a triangle, (iv) Congruency of
- triangles, (v) Similar triangles, (vi) Concurrence of medians and altitudes, (vii) Properties of angles, sides and diagonals of a parallelogram, rectangle and square, (viii) Circles and its properties including tangents and normals, (ix) Loci.

**MENSURATION**

- Areas of squares, rectangles, parallelograms, triangle and circle. Areas of figures which can be split up into these figures (Field Book), Surface area and volume of cuboids, lateral surface and volume of right circular cones and cylinders, surface area and volume of spheres.

**STATISTICS**

- Collection and tabulation of statistical data, Graphical representation frequency polygons, histograms, bar charts, pie charts etc.
- Measures of central tendency.