[Studyplan] CDS Maths Paper: Number System, Quadratic Equations, Surds, Indices, Linear Equation (Part 1 of 3) for UPSC Combined Defense service exam
 Prologue
 Topic wise breakup CDS Maths Papers
 Gather the weapons
 Warm up the brain
 [Block#1]: Basics + Algebra
 Number System
 Surds, Indices, Powers, Exponents
 Linear Equations
 Quadratic equations
 Appendix Download link: Topic wise Sorted NCERTs
Prologue
Studyplan for CDS GK paper already given click me. In this three part article series, we’ll how to prepare for the maths papers. This is different from CSAT and CAPF in following ways:
 No questions on reasoning.
 Plenty of questions Trigonometry, quadratic equations asked.
 They ask theory based geometry i.e. beyond the routine areavolumeperimeter type questions that you see in bank, LIC and state service exams.
 Even Statistics based theory questions are asked.
In recent years, SSC CGL has been moving towards Trigonometry, Geometry and Quadratic equations. CDS runs on parallel tract, but with higher difficulty level.
Topic wise breakup CDS Maths Papers
Duration: 2 hours; 100 MCQs; 100 Marks; NegativeMarking for wrong answers: yes.
Block  CDS Exam  2012(I)  2012(II)  2013(I)  2013(II) 
BASICS: need to be prepared for any aptitude exam.  BoDMAS/Simplification  2  1  1  0 
surds indices  2  3  2  5  
number system  12  11  7  11  
linear equation  3  3  3  2  
BANK: these topics are important for Bank, IBPS, LIC, PSU type exam.  % (profit loss, Interest rate)  5  7  2  2 
RatioProportion  1  1  1  0  
MixtureAlligiation  0  0  2  1  
statistics, Data Interpretation  6  7  7  5  
TimeSpeedDistanceWork  3  5  9  10  
SSCCDS block: more than 50% of the Questions come from this block.  quadratic equations  11  9  13  13 
Trigonometry  10  14  18  14  
Geometry  39  34  33  36  
Misc: asked in SSS/CDS/CAT. This should be prepared at last, once you’re done with priority topics viz. trig, QE and geometry.  functions, Coordinate Geometry  2  1  0  0 
logarithms  3  2  0  0  
Venn Diagrams  1  2  2  1  
total MCQs in CDS  100  100  100  100 
Let’s plot this data on a graph.
From the above graph you can see in last two papers 2013(I) and 2013(II) nearly 80% of the questions came from only five topics viz.
 Number System
 Quadratic Equations (And Polynomials)
 TimeSpeedDistanceWork
 Geometry
 Trigonometry
so the only question remains is: how to prepare? I’m dividing it into four blocks, as show in the following chart. Topics highlighted in red, are high priority.
in this article, we’ll see how to handle block#1.
 Now in the second article, we’ll see how to approach block#2: percentage, profitloss, simplecompound interest rate, timespeeddistancework and statisticsData interpretation related problems. click me
 in this third and last article, we’ll see block#3: how to approach geometry, trigonometry and remaining misc. Topics(block#4) .click me
But first….
Gather the weapons
ESSENTIAL 

OPTIONAL 

*Which book to use for CDS Maths?
NCERTs only clear the basics but for competitive exam level maths, you need a book on quantitative aptitude to learn and practice advanced concepts. In the market there are plenty of names. My recommendation is as usual Quantam CAT by Sarvesh Kumar Verma.Reasons:
 RS Aggarwal, M.Tyra, Guha etc. don’t cover geometry theory (cords, bisectors, orthocenter etc.); trigonometry, quadratic equations, logarithms, etc. in detail. While they help for bank, LIC level exams but hardly useful for CDS.
 Sarvesh Kumar’s geometry chapter is thorough, particularly the summary tables of triangles, quadrilaterals and circles. Those of you already know the basics of geometry, can directly use without having to go through NCERTs.
 For the given price range this book helps in all competitive exams: starting from SSC CGL, PSU, IBPS, UPSC to all the way upto CAT. Each chapter contains introductory exercises, level 1, level2 and final round exercises. For CDS do upto level 1. Thus saves your time and money in not having to buy new book for every exam.
Warm up the brain
In CDS, there is minimum physical requirements for height, chest, eyesight. Similarly to glide through Maths paper, you need to meet following requirements: