RRB NTPC CBT-1 Paper Analysis: Topic-Wise Weightage & Strategy

Every NTPC aspirant asks the same thing in the first week of preparation: "What should I study first, and what can I safely skip?" The honest answer comes from looking at what the paper has actually asked. CBT-1 is a 100-question screening test. It looks simple, but the gap between a student who qualifies and one who misses by a few marks is usually not talent. It is how the 90 minutes were spent and which topics got the preparation hours.

This guide goes through the CBT-1 pattern, the section-wise question distribution, the topics that keep coming back, how difficulty has moved from shift to shift, what published cut-offs tell us, and how to build a plan around all of it. One note before we start: topic counts below are approximate. They come from shift-wise analyses published by coaching and news websites, which are memory-based and often differ from each other. Treat them as a direction, not as exact numbers. Where figures conflict or we could not confirm them, we say so.

RRB NTPC CBT-1 at a glance

Item	Detail (as reported)
Total questions	100 objective questions, four options each
Total marks	100 (one mark per question)
Duration	90 minutes (120 minutes for eligible PwBD candidates)
Negative marking	One-third mark deducted per wrong answer
Sections	General Awareness 40, Mathematics 30, General Intelligence and Reasoning 30
Nature of stage	Screening. Marks are used to shortlist for CBT-2 and are not added to the final merit
Normalisation	Applied when the exam runs over multiple shifts
Minimum qualifying percentage	UR/EWS 40, OBC 30, SC 30, ST 25 (as reported by prep sites)

A discrepancy worth knowing: a few older analysis pages mention a deduction of 0.5 mark for a wrong answer. Most sources, including those describing the recent graduate-level notification, give one-third. Always confirm the figure in the latest official notification for your cycle before you build an attempt strategy, because the penalty directly changes how much guessing is sensible.

Another thing to check: exam schedules for recent cycles were revised more than once, and different websites list different date ranges. We are not quoting exact dates for that reason. Use the official regional RRB websites for dates, vacancies and the syllabus.

What the pattern means for your strategy

The structure creates three practical facts.

• General Awareness carries the most marks. Forty marks, the largest single block, and the fastest section to finish if you have prepared. A candidate who clears this section in 15 to 18 minutes buys time for the harder parts.
• Maths and Reasoning are 60 marks together. They are where the speed gap between aspirants shows up.
• One-third negative marking is mild but real. Three wrong answers cost one correct answer. Random guessing on a question where you cannot eliminate any option is a poor bet. Guessing after eliminating two options is usually reasonable.

Because the stage is purely a screen, a "good" score is not a perfect score. It is a score that comfortably clears the cut-off for your category and zone after normalisation. That is the target we will work towards later.

Section-wise question distribution

The split of 40, 30 and 30 has stayed the same across the papers covered by the analyses we reviewed. What changes from shift to shift is the mix of topics inside each section and how hard the questions are. Here is the general picture.

Section	Questions	Share of paper	What it rewards
General Awareness	40	40%	Recall, current affairs habit, static GK revision
Mathematics	30	30%	Arithmetic speed and formula recall
Reasoning	30	30%	Pattern spotting and accuracy under time pressure

Mathematics: topic-wise weightage

Published analyses agree on one big theme: arithmetic dominates. One recent analysis summary puts roughly 15 to 20 of the 30 Maths questions in arithmetic topics such as percentage, profit and loss, simple and compound interest, time and work, time-speed-distance and ratio. Another shift analysis (a June graduate-level shift) listed a similar spread with smaller counts per topic. The table below combines what these sources describe. The ranges are approximate and are not official.

Topic	Approximate questions per paper	Priority
Percentage, ratio and proportion	3 to 4	Very high
Profit, loss and discount	2 to 3	Very high
Time, speed and distance	2 or more	High
Time and work	1 to 2	High
Simple and compound interest	1 to 2	High
Number system, LCM and HCF	2 to 3	High
Simplification and algebra	1 to 3	Medium
Geometry and mensuration	2 to 5	Medium
Data interpretation	2 to 4 (reported in some shifts)	Medium
Trigonometry and statistics	1 to 2 each	Low to medium

Topics that repeat

Percentage and its cousins (profit and loss, discount, ratio) appear in practically every shift analysis we read. If you master only one cluster, make it this one. Next come time-speed-distance, time and work and interest. Together, these arithmetic chapters can account for more than half of the section.

What to do with the lower-weight topics

Mensuration, number system and basic algebra show up in smaller doses but are usually formula-driven and quick. Learn the standard formulas for area, volume and surface area of common shapes and the usual identities. Data interpretation, when it appears, is a time sink only if your calculation speed is weak. Trigonometry and statistics are small slices, so cover the basics last.

Difficulty of Maths

In shift reports, Maths is most often described as moderate, and it is the section where good attempts are lowest. In the 2021 shift reports we saw, Maths good attempts were generally quoted from the high teens to the mid twenties out of 30, while a more recent shift analysis quoted a range in the mid twenties. Note that "good attempts" is an estimate by the analyst of how many questions a well-prepared student could attempt with good accuracy. It is not an official figure.

Reasoning: topic-wise weightage

Reasoning is the section where regular practice pays most visibly, because the question types are limited and repeat constantly. Analyses describe a mix of verbal and non-verbal items, with series and analogy-type questions being the single largest bucket.

Topic	Approximate questions per paper	Priority
Analogy, classification and odd-one-out	3 to 5 (some summaries club series and analogy at 9 to 14)	Very high
Number and alphabet series	2 to 4	Very high
Coding-decoding	3 to 5	Very high
Puzzles and seating arrangement	3 to 4 (reported in some shifts)	High
Syllogism	1 to 3	High
Blood relations	1 to 2	High
Direction sense	1 to 2	Medium
Non-verbal: mirror image, paper folding, embedded figures	4 to 6 (reported in some analyses)	Medium
Mathematical operations, Venn diagrams	1 to 2 each	Medium

Topics that repeat

Coding-decoding, number series, analogy, classification and blood relations are the near-certain visitors. These are also the quickest to solve once you know the patterns, which makes them ideal for the first pass of your attempt.

Difficulty of Reasoning

Reasoning is usually reported as easy to moderate. In the 2021 reports, good attempts for Reasoning were quoted from the low twenties to the mid twenties out of 30; in a more recent shift analysis, the figure was higher, in the upper twenties. Since this section often has the highest accuracy for prepared students, losing marks here is the costliest mistake.

General Awareness: topic-wise weightage

General Awareness is the most unpredictable section and also the one where a clear strategy gives the fastest return. The shift analyses we reviewed consistently highlight current affairs from roughly the previous 6 to 12 months and modern history as the heaviest areas. The bucket sizes vary between sources, as the table shows.

Topic	Approximate questions per paper	Priority
Current affairs (last 6 to 12 months)	10 to 16	Very high
History (modern history gets the larger share)	5 to 7	High
General science (physics, chemistry, biology)	3 to 7	High
Indian polity and constitution	3 to 5	High
Geography	3 to 5	Medium to high
Computer basics	3 to 4 (reported in some shifts)	Medium
Economy, banking and schemes	2 to 4	Medium
Sports, culture, awards	2 to 3	Medium
Railway-related GK	2 to 3	Medium

Reading the table honestly

The ranges in this table do not add up to exactly 40 because different analysts classify questions differently, and a question about, say, a government scheme can be counted as current affairs, economy or polity. Use the ranking of topics, not the exact numbers. The ranking is consistent: current affairs first, then science and history, then polity and geography.

Difficulty of General Awareness

In 2021 shift reports, General Awareness was described as moderate in some shifts and easy in others, with good attempts quoted from the high teens to the mid twenties out of 40. A more recent analysis quoted a higher range, roughly the late twenties up to the low thirties. The section differs by shift, but a consistent pattern is that candidates who follow current affairs daily gain several marks over those who do not.

Difficulty trends by shift

Because CBT-1 runs over many days and shifts, no two candidates get the same paper. Normalisation is applied to compensate for difficulty differences. Here is what the published shift reports tell us.

Report (as published)	Overall difficulty	Reported good attempts (total)
Late January 2021, shift 1	Moderate to difficult	58 to 63
Late January 2021, shift 2	Easy to moderate	65 to 70
Early February 2021, shifts 1 and 2	Moderate in both	58 to 63 and 60 to 65
A June graduate-level shift (recent cycle)	Easy to moderate	78 to 84
A summary of a later graduate-level cycle	Easy to moderate	79 to 84

Two trends stand out. First, within the same day, one shift can be clearly harder than the other: on one January 2021 date, shift 1 was reported as moderate to difficult while shift 2 was reported as easy. Second, the more recent reports quote noticeably higher good-attempt numbers than the 2021 ones. This suggests that recent papers were found easier, or that analysts are calibrating more generously, or both. We cannot tell which. What we can say is that you should prepare for a paper where a well-prepared student attempts 75 to 85 questions with decent accuracy, while keeping the skill to handle a tougher shift.

The lesson of shift-wise variation is simple: do not panic if your shift feels hard. Normalisation exists for this reason. Concentrate on maximising your own accuracy within the paper you have.

Cut-off patterns: what the numbers say

Cut-offs are the most misunderstood part of CBT-1. Three things must be kept in mind before reading any number.

• Cut-offs are zone-wise (each RRB region has its own) and category-wise.
• They are based on normalised marks, so your raw score and the published cut-off are not directly comparable.
• They depend on vacancies, number of candidates who appeared, and paper difficulty. A cut-off from one cycle is a reference point, not a promise.

One prep website lists graduate-level CBT-1 general-category cut-offs from the older CEN 01/2019 cycle for several zones. As reported there, Patna was about 84.4, Allahabad about 82.7, Secunderabad about 80.2, Kolkata about 77.9, Guwahati about 77.5 and Mumbai about 76.9. A different site lists zone and category-wise numbers for another earlier cycle without clearly labelling which one, with general-category figures ranging from the high sixties to around 79 across the zones shown. Because the sources label cycles differently, we cannot confirm which figures belong to which notification. Please check the result documents on the official regional RRB websites.

The picture from these lists is still useful. General-category cut-offs in graduate-level CBT-1 have tended to sit in the high seventies to mid eighties in the busier zones, OBC a few marks lower, and SC and ST progressively lower. That gap by category is wide, often ten marks or more between general and SC in the tables we saw.

Expected cut-offs are guesses

Many sites publish "expected" cut-offs straight after exams. For some 2021 shifts, an analysis site expected around 83 to 85 for general and roughly 63 to 65 for ST. For a recent graduate-level cycle, one site gave an expected general range of 75 to 85. These are estimates by the publishers, not official data, and they are often revised later. We do not recommend planning around any single "expected" number. Plan around a margin instead.

Minimum qualifying marks versus cut-offs

The minimum qualifying percentages (UR/EWS 40, OBC 30, SC 30, ST 25) are the floor. They are not what gets you shortlisted. In practice, the shortlist cut-off is far higher than the floor because the number of candidates called for CBT-2 is only a multiple of the vacancies. Check the latest notification for the exact shortlisting ratio, as we could not confirm it from the sources we read.

Safe-score targets

With one-third negative marking, the score is: correct answers minus one-third of wrong answers. Here are some illustrations to see how attempts and accuracy combine.

Attempts	Correct	Wrong	Score
80	72	8	about 69.3
85	78	7	about 75.7
90	84	6	82.0
95	88	7	about 85.7

These are arithmetic examples, not predictions. They show the shape of the problem: to be in a range that has historically been competitive for the general category in busy zones, you need roughly 85 to 90 attempts at 90 to 93 percent accuracy. For reserved categories, a lower range may do, but only the result documents of your zone can tell you.

A practical section-wise target

A reasonable internal target for a general-category candidate who wants a safety margin is shown below. It is our suggested planning figure based on the good-attempt ranges in recent analyses, not an official benchmark.

Section	Attempts to aim for	Accuracy to aim for	Time budget
General Awareness (40)	32 to 36	85% or more	12 to 15 minutes
Reasoning (30)	27 to 30	90% or more	28 to 30 minutes
Mathematics (30)	24 to 28	88% or more	38 to 42 minutes

The time column adds up to 78 to 87 minutes. The remaining time is your review buffer. Keep at least 5 to 8 minutes at the end to revisit flagged questions.

Order of attempt strategy

The CBT-1 interface usually lets you switch sections freely, though you should confirm the rule in the instructions of your own notification and on the mock interface. If switching is allowed, the order below tends to work for most candidates.

1. General Awareness first (12 to 15 minutes). You either know a question or you do not. Do not spend more than 20 seconds on any item. Mark doubtful ones for review.
2. Reasoning second (about 28 minutes). Take the quick types first: coding-decoding, series, analogy, classification, blood relations, direction sense. Leave long puzzles and seating arrangements for the end of this section.
3. Mathematics third (about 40 minutes). Do percentage, profit and loss, ratio, simple interest and number system questions first. Skip any calculation that looks longer than about 90 seconds.
4. Review round (rest of the time). Revisit the flagged items, starting with Reasoning and Maths questions where you had narrowed to two options.

Some students prefer Maths first because their mind is freshest. That is also fine, as long as you cap its time. The rule that matters more than the order is a hard time cap per section during practice, so the habit forms before exam day.

Question-level rules

• If you cannot see a way to solve a question in the first 30 seconds, flag it and move on.
• Guess only after removing at least two options.
• Never change a confident answer during review without a clear reason.
• Do not look at the clock after every question. Check at section milestones, such as every 10 questions.

Section-wise preparation strategy

Mathematics

Start with tables up to 20, squares up to 30, cubes up to 15 and common percentage-fraction conversions. These save more time than any shortcut formula. Then work through the arithmetic cluster in this order: percentage, ratio, profit and loss, simple and compound interest, time and work, time-speed-distance. For each chapter, solve 30 to 40 timed questions from past papers, and note the question types that cost you more than a minute. Add mensuration, number system and algebra after that, and leave data interpretation and trigonometry for the final stretch.

Reasoning

Reasoning is a pattern-recognition skill, so practise in short daily sets of 20 to 25 questions rather than long weekly sessions. Build a personal list of series patterns (squares, cubes, alternating differences, prime-based jumps), coding rules (letter shifts, reverse order, positional values), and blood-relation shortcuts. For non-verbal topics, do a few questions daily on mirror images, paper folding and embedded figures, since these are quick once you have seen enough of them.

General Awareness

Split your effort into three streams. First, current affairs: read a monthly capsule for the last 8 to 12 months and revise it twice, because analyses show this is the single heaviest topic. Second, static subjects: modern history, basic science, polity and geography from standard NCERT-level notes or concise books. Third, railway-specific GK: zones, headquarters, famous trains and basic facts, which come in small numbers but are easy marks. Write short notes in a single notebook so you can revise quickly in the last week.

30-day revision plan

This plan assumes you already know the basics and are in the final month. If you are starting from scratch, stretch each block over more days.

Days	Focus	Daily routine
1 to 5	Diagnose and fix basics	Take one full mock, analyse every wrong and skipped question, list weak topics. Revise tables, squares and fractions for 30 minutes daily.
6 to 12	Arithmetic cluster	90 minutes of Maths (percentage, ratio, profit and loss, interest, time and work, speed), 45 minutes of Reasoning sets, 45 minutes of GA.
13 to 18	Reasoning and remaining Maths	Coding-decoding, series, analogy, blood relations, puzzles; mensuration, number system, algebra. Continue 45 minutes of GA.
19 to 23	General Awareness push	Revise the current affairs capsule, history, polity, geography, science. One sectional test daily.
24 to 28	Full-length mocks	One full mock each day at the real exam time slot, followed by 90 minutes of analysis.
29 to 30	Light revision	Revise formula sheet, error notebook and short notes. Sleep well. No new topics.

The analysis hour after each mock matters as much as the mock itself. For every wrong answer, write down whether it was a concept gap, a calculation slip, a misread question or a time-pressure error. After a week, patterns in your error log will tell you what to fix.

Common mistakes to avoid

• Treating GA as an afterthought. It is the biggest section and the easiest to improve in a short time.
• Reading analysis numbers as official. Topic counts and good attempts are estimates from memory-based reports.
• Chasing the hardest questions. A tough Maths question costs the time of three easy Reasoning ones.
• Guessing blindly. With negative marking, unfocused guesses reduce a hard-earned score.
• Skipping mocks until the last week. Speed and stamina need repeated exposure to the real format.
• Ignoring the error log. Repeating the same mistake in every mock is the clearest sign something is not being fixed.
• Relying on one old cut-off. Cut-offs move with difficulty, vacancies and normalisation.
• Not reading the notification. Pattern, negative marking, syllabus and shortlisting ratio can change between cycles.

Frequently asked questions

Q: How many questions are asked in RRB NTPC CBT-1? A: The pattern reported for recent cycles is 100 questions for 100 marks in 90 minutes: 40 General Awareness, 30 Mathematics and 30 Reasoning. Check your cycle's notification to confirm.

Q: Is there negative marking in CBT-1? A: Yes. Most sources report a deduction of one-third mark per wrong answer. Some older analysis pages mention 0.5 mark, so confirm in the official notification.

Q: Do CBT-1 marks count in the final merit? A: No, as reported, CBT-1 is a screening stage. Its marks are used only to shortlist candidates for CBT-2.

Q: Which Maths topics are most important? A: Percentage, ratio, profit and loss, simple and compound interest, time and work and time-speed-distance make up the bulk of the section in the analyses we reviewed. Number system and mensuration come next.

Q: Which Reasoning topics repeat most? A: Coding-decoding, number and alphabet series, analogy, classification, blood relations and syllogism appear regularly. Puzzles and non-verbal questions show up in varying numbers.

Q: How much current affairs should I cover? A: Analyses repeatedly point to roughly the last 6 to 12 months before the exam. Cover that window, revise it more than once, and add the major events and awards.

Q: What is a safe score in CBT-1? A: There is no official safe score. Earlier cut-offs for general-category graduate-level candidates in busy zones, as reported by prep sites, were in the high seventies to mid eighties after normalisation. Aim for a margin above that, and check your zone and category in the latest result documents.

Q: Does difficulty differ between shifts? A: Yes. Shift reports show that one shift can be reported as harder than another on the same day. Normalisation is meant to adjust for this.

Q: Should I attempt all 100 questions? A: Not necessarily. Attempting 85 to 90 with high accuracy usually beats attempting all 100 with many wrong answers, because of the negative marking.

Q: How many full-length mocks should I take? A: Many aspirants aim for one every day or every second day in the last two to three weeks, with a full analysis after each. Quality of analysis matters more than the raw number.

Final word

Past papers do not predict the exact questions, but they show where marks are won: arithmetic in Maths, a handful of repeating pattern types in Reasoning, and current affairs plus modern history in General Awareness. Build your plan around those, track your accuracy honestly, and treat every cut-off number as a rough guide rather than a target. Finally, practise the full 90-minute experience with full-length mocks on Pareeksha, review each attempt carefully, and walk into the exam knowing your section order and time caps by heart.