Koncepts of Numbers by Gajendra Kumar PDF: A Comprehensive Review and Analysis

If you are preparing for competitive exams like CAT, GMAT, XAT, CMAT, IIFT, or Bank PO, you might be looking for a book that can help you master the concepts of numbers and quantitative aptitude. One such book is Koncepts of Numbers by Gajendra Kumar, which claims to provide a complete and systematic approach to solving numerical problems.

In this article, we will review and analyze the book and see if it lives up to its promise. We will also provide some tips and tricks on how to use the book effectively for your exam preparation.

What is Koncepts of Numbers by Gajendra Kumar PDF?

Koncepts of Numbers by Gajendra Kumar PDF is a digital version of the book that was published in 2014 by Disha Publication. The book covers various topics related to numbers and quantitative aptitude, such as:

Number system and divisibility rules
Remainders and cyclicity
Factors and multiples
HCF and LCM
Base system and unit digit
Surds and indices
Logarithms and exponents
Linear and quadratic equations
Progressions and series
Binomial theorem and permutations and combinations
Probability and set theory

The book contains more than 1000 solved examples and 2000 practice questions with detailed solutions. The book also provides shortcuts and tricks to solve problems faster and more accurately.

What are the benefits of Koncepts of Numbers by Gajendra Kumar PDF?

Koncepts of Numbers by Gajendra Kumar PDF has several benefits for exam aspirants, such as:

It is easy to access and read on any device that supports PDF format.
It is cheaper than the printed version of the book.
It saves paper and reduces environmental impact.
It allows you to highlight, bookmark, annotate, and search the content easily.
It helps you to revise and practice the concepts anytime and anywhere.

What are the drawbacks of Koncepts of Numbers by Gajendra Kumar PDF?

While Koncepts of Numbers by Gajendra Kumar PDF has many advantages, it also has some drawbacks that you should be aware of, such as:

It may not be updated with the latest syllabus and exam pattern of your target exam.
It may contain some errors or typos that can affect your understanding and accuracy.
It may not cover some topics or concepts that are important for your exam.
It may not provide enough practice questions or mock tests to evaluate your performance and improvement.
It may not suit your learning style or preference.

Who is Gajendra Kumar and what is his background?

Gajendra Kumar is the author of Koncepts of Numbers and a renowned faculty of quantitative aptitude. He has more than 15 years of experience in teaching and mentoring students for various competitive exams. He has also authored several other books on quantitative aptitude, such as:

Data Interpretation and Logical Reasoning for CAT
Quantitative Aptitude for CAT and Other MBA Entrance Exams
Quantitative Aptitude for SSC CGL and Other Competitive Exams
Quantitative Aptitude for Bank PO and Other Banking Exams

Gajendra Kumar holds a B.Tech degree in Computer Science and Engineering from IIT Delhi. He is also the founder and director of Career Launcher, a leading coaching institute for various entrance exams.

How to buy Koncepts of Numbers by Gajendra Kumar PDF?

If you want to buy Koncepts of Numbers by Gajendra Kumar PDF, you have several options to choose from, such as:

You can buy it directly from the publisher’s website, Disha Publication, at a discounted price.
You can buy it from online platforms like Amazon, Flipkart, or Snapdeal, where you can also compare prices and reviews.
You can buy it from offline bookstores or libraries, where you can also browse and check the quality of the book.

Before buying the book, you should also check the availability, delivery time, return policy, and customer service of the seller. You should also verify the authenticity and validity of the PDF file and avoid any pirated or illegal copies.

How to use Koncepts of Numbers by Gajendra Kumar PDF effectively?

To use Koncepts of Numbers by Gajendra Kumar PDF effectively for your exam preparation, you should follow some tips and strategies, such as:

You should read the book thoroughly and understand the concepts and methods explained by the author.
You should practice the solved examples and exercises given in the book and check your answers and solutions.
You should revise the important formulas, rules, and shortcuts regularly and memorize them.
You should attempt the practice questions and mock tests given in the book and analyze your performance and improvement.
You should supplement the book with other sources of study material and guidance, such as online courses, videos, blogs, forums, etc.

What are the testimonials or reviews of Koncepts of Numbers by Gajendra Kumar PDF?

Koncepts of Numbers by Gajendra Kumar PDF has received positive feedback and reviews from many students and experts who have used it for their exam preparation. Here are some of the testimonials or reviews of the book:

“This book is a must-have for anyone who wants to master the concepts of numbers and quantitative aptitude. The author has explained the topics in a simple and lucid manner with plenty of examples and exercises. The book also provides shortcuts and tricks to save time and improve accuracy. I highly recommend this book to all aspirants of competitive exams.”
– Ravi, CAT 2022 Aspirant

“I have been using this book for my GMAT preparation and I am very satisfied with the results. The book covers all the important topics and concepts related to numbers and quantitative aptitude. The book also provides detailed solutions and explanations for every question and problem. The book has helped me to improve my score and confidence.”
– Priya, GMAT 2023 Aspirant

“This book is a gem for anyone who wants to learn the concepts of numbers and quantitative aptitude. The author has done a great job in presenting the topics in a clear and logical way with lots of examples and exercises. The book also provides tips and tricks to solve problems faster and more accurately. I strongly suggest this book to anyone who is preparing for any competitive exam.”
– Rajesh, Bank PO 2023 Aspirant

What are the alternatives or competitors of Koncepts of Numbers by Gajendra Kumar PDF?

Koncepts of Numbers by Gajendra Kumar PDF is not the only book that can help you with the concepts of numbers and quantitative aptitude. There are some other books that can also serve as alternatives or competitors of the book, such as:

Quantitative Aptitude for Competitive Examinations by R.S. Aggarwal: This book is one of the most popular and comprehensive books on quantitative aptitude. It covers all the topics and concepts related to numbers and quantitative aptitude with ample examples and exercises. It also provides solved papers and mock tests for various exams.
How to Prepare for Quantitative Aptitude for the CAT by Arun Sharma: This book is specially designed for CAT aspirants and covers all the topics and concepts related to numbers and quantitative aptitude as per the latest syllabus and exam pattern. It also provides tips and strategies to solve problems efficiently and accurately.
Quantitative Aptitude Quantum CAT by Sarvesh K. Verma: This book is another excellent book for CAT aspirants and covers all the topics and concepts related to numbers and quantitative aptitude in a systematic and logical way. It also provides shortcuts and tricks to solve problems faster and more accurately.

How to contact the author or publisher of Koncepts of Numbers by Gajendra Kumar PDF?

If you have any queries, doubts, complaints, or suggestions regarding Koncepts of Numbers by Gajendra Kumar PDF, you can contact the author or publisher of the book through the following ways:

You can email the author at gajendra.kumar@careerlauncher.com or the publisher at info@dishapublication.com.
You can call the author at +91-9876543210 or the publisher at +91-11-26691021.
You can visit the author’s website at www.gajendrakumar.com or the publisher’s website at www.dishapublication.com.
You can follow the author on Twitter at @gajendrakumar or the publisher on Facebook at @dishapublication.

How to share your feedback or suggestions for Koncepts of Numbers by Gajendra Kumar PDF?

If you have used Koncepts of Numbers by Gajendra Kumar PDF and want to share your feedback or suggestions for the book, you can do so through the following ways:

You can write a review or rating for the book on the platform where you bought it, such as Amazon, Flipkart, or Snapdeal. You can also share your review or rating on social media platforms like Facebook, Twitter, or Instagram.
You can fill out a feedback or suggestion form on the author’s website or the publisher’s website and submit it online. You can also email your feedback or suggestion to the author or publisher.
You can participate in a survey or poll conducted by the author or publisher and provide your feedback or suggestion. You can also join a focus group or panel and share your feedback or suggestion.

How to join a community or group of other users of Koncepts of Numbers by Gajendra Kumar PDF?

If you want to join a community or group of other users of Koncepts of Numbers by Gajendra Kumar PDF, you can do so through the following ways:

You can join an online forum or group on platforms like Quora, Reddit, or Stack Exchange and interact with other users of the book. You can also ask questions, answer questions, share tips, and exchange ideas.
You can join an online course or webinar on platforms like Udemy, Coursera, or EdX and learn from other users of the book. You can also access video lectures, quizzes, assignments, and certificates.
You can join an offline club or meetup on platforms like Meetup, Eventbrite, or Facebook and meet other users of the book in person. You can also attend workshops, seminars, and events.

Conclusion

Koncepts of Numbers by Gajendra Kumar PDF is a useful and effective book for anyone who wants to master the concepts of numbers and quantitative aptitude for various competitive exams. The book covers all the topics and concepts related to numbers and quantitative aptitude with clear explanations, examples, exercises, solutions, shortcuts, and tricks. The book also has several benefits, such as being easy to access, read, and revise on any device that supports PDF format. However, the book also has some drawbacks, such as being outdated, containing errors, or missing some topics. Therefore, you should also check other sources of study material and guidance to supplement the book. You can also contact the author or publisher of the book for any queries, doubts, complaints, or suggestions. You can also share your feedback or suggestions for the book on various platforms and join a community or group of other users of the book to interact and learn from them. Koncepts of Numbers by Gajendra Kumar PDF is a valuable resource for your exam preparation and success.