CDS 2018 Mathematics Preparation Tips

Updated On -

Feb 13, 2018

Simran Nigam

Content Curator

For recruitment to Indian Defence forces that includes Indian Army, Indian Navy and Indian Air Force. Aspirants must be familiar with CDS exam pattern. Here, we are talking about Elementary Mathematics for CDS Exam. Math is a scoring subject for all competition exams.

CDS Math paper contains 100 objective type questions and all questions carry equal marks. CDS Math paper have four options for the answer every question. For every wrong answer, one-third marks will be deducted as penalty. You should give only one answer. More than 1 answer will be treated as a wrong answer and Left blank question has no penalty for it.

This paper is design for test your speed and concepts of math calculations. Everything depends on how fast you are to 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-

• Arithmetic
• Algebra
• Trigonometry
• Geometry
• Mensuration
• Statistics

### How to Prepare for CDS 2018 Mathematics

There are few tips & strategies which govern our score in this part of exam. You can crack the CDS mathematics exam with hard work and determination. To help you in your preparation, here are some important preparation tips to crack the UPSC CDS mathematics section:

Speed: Speed and accuracy is the key point. By regular practice and analyzing the questions, speed will be developed.

Analyzing topic of expertise or topics which can be mastered in few days: Practice with various mock tests and question banks.

Make a list on important formulas, theorems and tips check some of here Geometry formulas for Circle, Rectangle, Square, tangents etc. Speed Distance and Time related questions, Math Formula for Area & surface area, Math Formula for Volume, Math Formulas of Number System etc. to prepare for CDS.

Check CDS Preparation Tips

Time Management: It is the only key for any competitive exam. Clear concepts are the best strategy to get the scores in Subject like Mathematics.

Make use of Techniques: Learn new tricks or smart learning methods to ensure efficient use of time and labor. Try to adopt your own short cut methods. Take a systematic approach for each question.

Learn: Learn the tables up to 25, cubes up to 15, cube roots up to 15 and basic algebra formulas. Regularly revise them till the date of the examination.

Revise: Revise whatever you learn during your preparation at the end of the week. This way you will be able to retain the information.

Previous year’s paper: Solve previous year’s question papers on a daily basis. This helps in understanding the pattern of questions and how to attempt them.  This will also enable you to understand the level of difficulty for each topic.

### Distribution of Previous Year’s Questions of CDS Mathematics

In 2014 CDS I, there were high number of questions on Trigonometry.

In 2014 CDS II, there were high majority of questions on Mensuration.

In the year 2015 in both CDS I & II, Mensuration were leading with 22 number of questions.

To help you understand the pattern of questions for UPSC CDS mathematics section, we have mentioned some topics from previous year’s papers:

Topics No. of Questions
2014 CDS (I) 2014 CDS (II) 2015 CDS (I) 2015 CDS (II)
BODMAS/ Simplification 2 1 3 3
Surds & Indices 3 2 5 4
Number Systems 11 15 11 8
Linear Equations 4 2 3 4
Percentage (Profit & Loss, Interest Rate) 2 9 7 7
Ratio-Proportions 1 3 2 1
Mixture-Alligation 2 1
Statistics, Data Interpretation 8 6 4 3
Average- Problems on Ages- Series 4 3 5 6
Time- Speed- Distance-Work 5 7 10 12
Mensuration 16 16 22 22
Quadratic Equations 10 5 2 4
Trigonometry 14 14 14 12
Geometry 11 15 11 11
Coordinate Geometry 5 1 1
Logarithms 1
Venn Diagrams 2 1 1
Total 100 100 100 100

Check CDS Syllabus

### Recommended Books for CDS Mathematics

NCERTs only clear the basics but for competitive exam level maths, you need a book on quantitative aptitude to learn and practice advanced concepts. List of books as follows:

• Quantitative Aptitude – by Dr. R.S. Aggarwal
• Quicker Mathematics – by M. Tyra
• Numerical Ability – by Dilhan Publications

*The article might have information for the previous academic years, please refer the official website of the exam.