# How to Prepare Maths for the RRB NTPC Exam?

By BYJU'S Exam Prep

Updated on: September 25th, 2023

How to Prepare Maths for RRB NTPC Exam? RRB NTPC is one of the most competitive exams and Maths is an important section within it. RRB NTPC Maths is an important topic that is part of both CBTs and has a significant weightage as well. To clear the exam, one must start their preparation keeping in mind the importance this section holds

Maths is one of the most scoring subjects however, not all candidates are able to leverage it. This is because most of the candidates are not aware of the essential factors needed to crack the exam. Hence, in this post, we are providing candidates with RRB NTPC Maths preparation tips and strategies to help them score well in the upcoming exam.

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## RRB NTPC Maths

Maths is one of the most important sections of the RRB NTPC exam. Not only it is part of both CBTs but it also contains a substantial amount of weightage. Hence, preparing it well is essential for candidates to qualify the exam. As Maths is a challenging subject for many, it is important that aspirants follow a well-drawn preparation strategy to improve their scores.

In this article, we have discussed RRB NTPC Maths preparation strategy and tips in detail. Check out the important topics as well as preparation tips to help you score well in the upcoming exam.

## RRB NTPC Maths Syllabus

To prepare for the exam well, candidates should know the RRB NTPC syllabus for Maths properly. This will help candidates understand what topics to study and create a preparation strategy accordingly. Refer to the RRB NTPC maths syllabus below to recognize the topics that need the most preparation.

## RRB NTPC Maths Topic-wise Weightage

To help you gain efficiency in your preparation, we are providing RRB NTPC Maths topic-wise weightage. This will help you understand the important topics that are most asked in the exam. Preparing in a mindful manner is the key to cracking the exam. Hence, refer to the RRB NTPC maths topic-wise weightage below.

 Topics Weightage Profit and Loss 4-5 Percentage 3-4 Speed, Time, and Distance 3-4 Geometry and Trigonometry 2-3 Number System 2 LCM and HCF 2 CI and SI 2 Ratio and Proportion 2 Time and Work 2 Elementary Algebra 2 Simplification 1 Elementary Statistics 1-2 Fractions 1 Mensuration 1 Decimal 1

## How to Prepare Maths for RRB NTPC Exam?

Candidates should first and foremost be aware of RRB NTPC Maths syllabus before they start preparing. It is essential to ensure that candidates have a clear path to follow and only focus on important topics. To crack the RRB NTPC exam you need to work on the following parameters.

### Beat the Clock

Time can be your worst enemy or a loving friend. Yes, you read it right. It solely depends on you how you treat this entity. Organizing yourself by devising a proper schedule and following it religiously can bring a drastic change in your life. Assign 2-3 hours daily to this subject and practice questions in a limited time followed by a thorough revision.

You can’t just start with any topic blindly. Some topics form the basics for the other topics and so they need to be placed at the top of your preparation schedule. Start with the basics such as the number system and you will be amazed to see its application on other topics.

### Bulk is better

To clear your concepts on any topic, you need to practice problems in bulk. Take time to imbibe the concepts by practicing a lot of questions on them. There is no oral revision in maths, you need to practice questions in order to remember them for a long time.

### Break the Monotony

When you start a topic, it is important that you go through all the variety of questions that appeared in various examinations. The more you expose yourself to diverse problems, the more you will feel at ease when an ‘Out of the Box’ problem hits you at the time of the exam.

### ‘Drop the Pen’ Approach

Minimize the use of a pen as you get comfortable with various problems. In every competitive exam, there are at least 5-6 problems in every competitive exam that do not require the use of a pen. Do not lose heart if you are not able to pick such problems at first as you will be able to do it gradually if you’re consistent in your preparation.

## RRB NTPC Maths Preparation Tips and Strategy

Candidates can refer to the RRB NTPC maths preparation tips listed down below. These tips will certainly help you improve the level of your preparation and make it more effective.

### Follow one standard book religiously

There is an ample number of books available in the market but you need not go after each one of them. Instead, take a standard book that will clear your concepts and covers the entire syllabus.

### Start with one topic at a time and practice a variety of questions from the topic

The best way of RRB NTPC preparation is to not exert yourself too much by practicing all the topics at once. Instead, go slow and start with one topic at a time and try to master the concepts behind it. If you come across any short method that will bring down the time factor, note it down immediately in your diary for future context.

### Do not underscore the power of formulas

Formulas do play an important role in any competition. They are devised for this purpose only i.e. to cut down the time limit. Therefore, never hesitate to learn some important formulas. Without them, you may fall short in your defense.

Speed can be a major hassle as you enter the competitive world. If you devote too much time to a question, you are more prone to lagging behind in the competition. However, if you stay consistent in your preparation, you are more likely to reach your goal faster. What should you do to increase your speed? Well, there are numerous ways to increase your speed like learning tables, squares, cubes, square roots, cube roots, etc. Inculcate all these things in your regime and feel the change.

### Maintain a diary of important questions & short notes

Maintaining a diary is one of the best ways to organize yourself. Doing this, you will avoid the hassle of reaching out to different sources that were once visited by you when you started off with your preparation. It is important to mention here that different problems can be solved using different approaches. Therefore, you are advised not to stick to one approach. If you find a short or impressive approach, do not forget to mention that in your diary.

### Practice Quizzes & Mock tests

The last step of every preparation is revision and practice. Some students devote their entire time to completing the entire syllabus and commit the mistake of not taking mock tests during this period. And after completing the syllabus, when they sit for the mock tests, they end up forgetting most of the topics. Quite Relatable, Right!!! Just Remember, RRB NTPC mock tests should be a part of your preparation and you should not wait for the syllabus to end in order to attempt quizzes or mock tests.

### Analyze the Mock Tests

If you are not in the habit of analyzing the mock tests, then develop one straight away. We have taken a problem from our ‘Mock Test Series’ which is designed by Maths experts. For every question, we have uploaded two types of approaches:

### Try Different Approaches

If you follow the basic approach to this problem, you will end up wasting your precious time. And if you follow the same approach for other problems as well, you will end up having no time for other sections. Therefore, it is advised that you expose yourself to different approaches and follow the one that helps you in getting the solution in no time.

### Go Through Previous Year Question Papers

This will help candidates to have an idea of the examination pattern. Aspirants should practice the previous papers at the time of revision so that they can know the time limit and can practice weak areas. Click to download RRB NTPC Previous Years Papers.

## RRB NTPC Maths Questions

The best way to learn RRB NTPC maths is by practicing it. Candidates should refer to the maths questions provided below to ensure proper preparation. These questions will help you cover a number of concepts to help you cover the whole syllabus.

1. A reduction of 21% in the price of Mangoes enables Ram to buy 7 kg more for Rs. 1000. Then find out how many kgs of the mangoes will be bought at a reduced price if he purchases mangoes for Rs. 1000?

Basic Method:

Let the original price be ‘a’ per kg.
Given, a reduction of 21% in the price of Mangoes enables Ram to buy 7 kg more for Rs. 1000.
∴ Reduced price = a – 21% of a
⇒ Reduced price = 0.79a
Now, the number of kgs of mangoes bought at Rs. ‘a’ per kg for Rs. 1000 = 1000/a
The number of kgs of mangoes bought at the reduced price of Rs. 0.79a per kg = 1000/0.79a

⇒ 1000 – 790 = 7 × 0.79a
⇒ 210 = 7 × 0.79a
⇒ 0.79a = 30
∴ Reduced price = Rs. 30 per kg
He will purchase 1000/30 = kg mangoes for Rs. 1000.

Short Method:

In 21% (of the original price) at a reduced price, he buys 7 kg more
21%=7
100%(of original price = 1000)=7*100/21=100/3kg

2. What is the area of a right angled triangle is 30 cm2. If height 7 m more then base thenfind the length –
(A) 5 m
(B) 12 m
(C) 7 m
(D) 9 m

Sol: Let the length of the base be x
Height of the triangle = x+7
Area of triangle = ½ × x × (x + 7) = 30
x2 + 7x – 60 = 0
x2 + 12x – 5x – 60 = 0
(x+12)(x-5) = 0
X= 5 = length of base

3. Sum of digits of a 2-digit number is 13. If the digits are interchanged then the new number is 27 less then the original number. Find the new number.

Sol: Let the 2 digits number be 10x+y
Sum of digits = x+y = 13 …..(i)
After inter changing the digits,
New number = 10y+x
According to the question,
10x+y – 10y+x =27
9(x-y)=27
x – y =3 ….(ii)
solving (i) and (ii)
x = 8 and y = 5
new number = 10y +x = 58

4. What is 37.3.26 × 7.2 = ?

Sol: 3.26 x 7.2 = 23.472

5. A boat travels against the current from city X to city Y and with the current from city Y to city X. If the speed of boat in still water is 40 km/hr and speed of current is 10 km/hr then what is the average speed of the boat for the entire journey?

Sol: When the distance traveled is same with two different speeds, the average speed is = 2ab/(a+b)
Where a and b are the two different speeds
Speed of boat in downstream = 40+10 = 50 km/hr
Speed of boat in upstream = 40-10 = 30 km/hr
So average speed of boat = (2×50×30)/(50+30)=37.5 km/hr

6. What is the mode of 72, 74, 75, 76, 75, 74, 73, 75, 73, 71 and 77?

Sol: The mode of a set of data values is the value that appears most often. Arranging the data in ascending order, 71,72,73,73,74,74,75,75,75,76,77. We can clearly see that 75 appears most often. Therefore mode of the data = 75

7. A shopkeeper Marks the price of Rs 160 on item. After giving 10% discount he earns a profit of 20%. What is the cost price of the item?

Sol: Marked price = Rs. 160
Selling price after giving 10% discount = 160 x 90/100 = Rs. 144
Since, Profit = 20%
CP = 100/120 x SP = 5/6 x 144 = Rs. 120

## RRB NTPC Maths Book

Referring to a good RRB NTPC book is crucial to your overall performance. Not only are books a good source of study material but they also provide various practice questions with solutions and explanations. Referring to RRB NTPC Math Books will help you save time as you will find all the formulas in one place. The books for RRB NTPC maths preparation are provided below.

 RRB NTPC Maths Book Author/Publisher Quickest Mathematics Kiran Publication Advance Maths Rakesh Yadav Quantitative Aptitude RS Aggarwal

We hope through these tips you will be able to prepare Maths for the RRB NTPC exam efficiently!

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