CDS 2017 NEWS

NATIONAL LEVEL OFFLINE TEST

CDS Examination is scheduled to be conducted on February 5, 2017. CDS Exam pattern comprises of a written exam and personal interview. The written test will be conducted for 3 subjects namely, English, General Knowledge and Elementary Mathematics.

There are 2 papers in **CDS** that are organized, one for Indian Military Academy, Indian Naval Academy and Air Force and the other for Officer’s Training Academy. Mathematics is an important part of this first paper. Math for CDS exam is most important as you can score high in mathematics if you practice had enough. Have a look at the exam pattern for CDS Examination

Subjects | Duration | Maximum Marks |
---|---|---|

English | 2 hours | 100 |

General Knowledge | 2 hours | 100 |

Elementary Mathematics | 2 hours | 100 |

Mathematics exam comprises of 100 questions which have to completed within a time duration of 120 minutes. This paper is design to test your speed and concepts of math calculations. Everything depends on how fast you solve various types of problems. Practice more and more for this paper to score well in UPSC Combined Defence service exam. Aspirants must cover these following topics

To crack the CDS Elementary Mathematics with flying colours. Here, we are providing you a pattern of some questions from significant topics which have been repetitively asked year after year. The detailed analysis is mentioned in the table below

It cover topics like – 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.

**Given below is the analysis of questions of previous year’s papers**

The number of questions asked from mensuration 3D is higher than 2D. Thus, one needs to try and focus on them as it can really boost your score and help you clear the average cut-off.

Topic | No. of questions | ||||
---|---|---|---|---|---|

2014-I | 2014-II | 2015-I | 2015-II | 2016-I | |

Mensuration -2D | 10 | 6 | 10 | 4 | 7 |

Mensuration -3D | 9 | 12 | 11 | 13 | 3 |

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

**Trigonometry previous year’s paper analysis is discussed below**

The maximum number of questions are asked from Trigonometrical Identities. It is of utmost importance and you need to emphasize this topic a little more than the others.

Topic | No. of questions | ||||
---|---|---|---|---|---|

2014-I | 2014-II | 2015-I | 2015-II | 2016-I | |

Trigonometric Rations | 2 | 1 | 1 | – | 1 |

Sum, difference and product formulae | 4 | 3 | 3 | 3 | 1 |

Trigonometrical rations of multiple and sub-multiple angles | 1 | 2 | 2 | – | 1 |

Properties of triangles | 4 | 1 | 1 | 1 | – |

Height and distance | 3 | 1 | 3 | 2 | 1 |

Trigonometrical Identities | 5 | 6 | 7 | 5 | 5 |

Number System-Natural numbers, Integers, Rational and Real numbers. Fundamental operations addition, subtraction, 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.

**Analysis of questions from Arithmetic**

The topic of Divisibility/ Remainder Theorem with an average of around 8-9 questions in almost every year’s question paper. So, you needs to pay extra attention to this topic to earn more marks & improve their score.

Topic | No. of questions | ||||
---|---|---|---|---|---|

2014-I | 2014-II | 2015-I | 2015-II | 2016-I | |

BODMAS/ Simplification | 2 | 3 | 5 | 5 | 1 |

Surds & indices | 1 | 2 | 5 | 2 | 1 |

Divisibility/ Remainder Theorem | 8 | 11 | 9 | 7 | 7 |

LCM and HCF | 5 | 6 | 1 | 2 | 2 |

It cover topics like – Lines & angles, plane figures, theorems on

1. Congruency of triangles

2. Properties of angles, sides and diagonals of a parallelogram, rectangle & square

3. Parallel lines

4. Concurrence of medians & altitudes

5. Properties of angles at a point

6. Similar triangles

7. Loci

8. Circles & its properties including tangents and normals

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

**Read AboutCDS Syllabus**

Important topics and questions regarding CDS Elementary Mathematics is mentioned below

Elementary Mathematics | Number of questions |
---|---|

Arithmetic | 37 |

Algebra | 10 |

Trignometry | 14 |

Geometry | 15 |

Mensuration | 20 |

Statistics | 4 |

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