Crack CDS 2020: Score 65+ Marks in Maths. Know how!

Updated Mon, 07 Sep 2020 03:00 PM IST

Are you an unmarried graduate who’s looking for the perfect job? A job that will not only provide you with a handsome salary and numerous perks but also earn you respect for what you do. 

Then, Armed Services are something you should aim at. Every year a plethora of defence aspirants appear for the Combined Defence Services (CDS) exam conducted by the  Union Public Service Commission. This exam is conducted twice every year to recruit applicants for the Indian Military Academy, Officers Training Academy, Indian Naval Academy and Indian Air Force Academy

With the application forms for CDS 2020 already out, it is your golden chance to prepare well and secure your seat in the country’s most prestigious career. The CDS examination will be conducted on 8th November, 2020. Hence, you have nearly 2 months to give your best shot.

Source: amar ujala

The CDS exam tests your ability to answer questions based on English (120 Questions), General Knowledge (120 Questions) and Mathematics (100 questions) subject in a time frame of 2hours per subject. 

In order to excel in this exam, you need to develop a competitive edge by scoring well in the math section. It is because math is the only section where candidates stand a chance of losing maximum marks owing to their inaccuracy and inefficiency. But you can very easily score 65+ marks out of the total 100 marks in the mathematics section by following the below mentioned key points:

1. Strategic approach: To be able to score 65+ marks in the math section, you need to make sure that you attempt at least 65 questions correctly.

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Also, remember, negative marking does exist in the CDS exam. So, you cannot afford more than 6 questions to be wrong. Each question carries one mark. 

The key point to ace this section is to maintain a balance of accuracy and efficiency.

2. Set realistic goals: Have a look at the math syllabus and then divide your preparation time to different topics. Allot more time to difficult topics like trigonometry and mensuration. Set weekly goals so that you can track your progress on different topics and also identify the topics you are weak in. Try to give some extra time to strengthen your weaker topics by solving more and more number of questions related to that topic.

While studying, make notes of important formulas so that you can revise them from time to time. This will help you to learn those formulas by heart.

3. Follow the right study material:  Some of the books you can go for to prepare CDS syllabus include:

  • Arihant Pathfinder
  • Mathematics for CDS by RS Aggarwal
  • Quantum CAT by Sarvesh Verma, 
  • Quantitative Aptitude for examinations paperback by RS Aggarwal, etc.

4. Topic wise weightage: Analyze previous year question papers to determine the pattern of the exam. Focus more on topics accordingly. For instance, you get very easy questions based on chapters related to statistics like bar chart, pie chart, measuring central tendency and frequency polygons, etc.

Given below is some analysis drawn from previous year question papers. You can schedule your study plan according to it but remember,  it can change. So, make sure you cover the entire syllabus.


The level of questions you get on concepts like surface area and volume of rectangle, parallelogram, cuboids, etc will be slightly difficult. To prepare for these concepts you need to learn the formulas by heart and also work on your calculation speed. Try solving more and more number of questions based on these concepts as this will help you to memorize the formulas quite well. 


Questions on Geometry and trigonometry related concepts such as properties of angles, congruency of triangles, medians, tangents , etc are most commonly asked. Hence, these topics carry very high weightage in CDS exam. Try to develop full command on chapters like line & angles, triangles, circles, trigonometry and applications of trigonometry by thoroughly understanding the concepts involved.

BASIC Topics:

Topics like number system, time and work, percentages, averages, HCF, LCM, quadratic equations are very easy to understand and consume less time. Therefore, if you are not that good in math then you can start your preparation with such topics. It will help to develop concept clarity along with boosting up your confidence. 

5. Revise: Until and unless you revise you won’t be able to memorize things. This can cause problems for you in the final exam. All the formulas and concepts should be on your fingertips only then will you be able to complete your exam correctly and in time.

Our online course on CDS preparation  brings you the opportunity to sit at home and attend online classes through zoom sessions. Our highly experienced faculty will guide you about the do’s and don’ts of CDS exam along with relevant study material and much

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