IBPS Clerk common mistakes
IBPS Clerk · Understand the traps and how to avoid them.
In Reading Comprehension, scanning the passage only for the keyword that appears in the question and then choosing the option that contains that same sentence, without reading the surrounding two or three lines.
Sectional timing gives roughly 20 minutes for the whole English section, so candidates treat RC as a keyword-search task. Exam setters deliberately place the keyword in a distractor option that reverses cause and effect, changes the scope (some → all) or attributes the view to the wrong person.
What to do instead
Read the question stem first, then read the full paragraph containing the keyword before looking at options. Test each option against three filters: does the passage say it, does it say it about the same entity, and is the degree the same (some vs all, may vs will)? Eliminate options that are true in the real world but absent from the passage.
In para-jumbles and sentence-rearrangement, reading the four given sequences and picking the one that 'flows' best instead of first fixing mandatory pairs.
Fluency judgement is fast and feels reliable, but exam sequences are built so that two or three options read plausibly. Candidates also assume the sentence mentioning the topic noun must be first, when the opener is usually the sentence with no pronouns, no definite article and no backward-pointing connector.
What to do instead
Build the order before looking at options. Find the opener (a general statement with no anaphoric reference), then lock mandatory pairs: pronoun → its antecedent, connector → the clause it depends on, chronological or cause-effect links. Eliminate any option that splits a locked pair; only then use flow to choose between the survivors.
In Data Interpretation, calculating the exact value of every row and column in the table or bar chart before answering the first question.
School habit plus fear of error makes candidates compute the full dataset. DI questions usually ask for a ratio, a percentage share or a difference, so most of the arithmetic cancels; doing all of it wastes 4-6 minutes per set and leaves later sets unattempted.
What to do instead
Read the question before touching the data. Write the required expression as a fraction of the two figures involved and cancel before multiplying. Keep a percentage-to-fraction chart (12.5% = 1/8, 16.66% = 1/6, 33.3% = 1/3) and use it to convert shares instantly. Attempt the two easiest questions in a set first and abandon the set if the third needs more than 90 seconds.
In arithmetic word problems, adding successive percentage changes (for example, treating two successive discounts of 10% and 20% as a flat 30% discount) or applying the percentage to the original base when the base has changed.
The single-step percentage formula is over-learned, and the phrase 'successive' is easy to skim. Candidates also forget that profit percentage is calculated on cost price while discount is calculated on marked price, so they apply the wrong base.
What to do instead
For any chain of percentage changes, multiply factors: 0.90 × 0.80 = 0.72, which is a 28% reduction, not 30%. Before substituting, write down the base for each percentage (CP for profit/loss, MP for discount, previous year's value for growth). For two-step problems, label the intermediate value explicitly rather than reusing the original.
In number series, spotting one arithmetic pattern in the first three terms and then marking the term that breaks it, without testing whether the remaining terms follow any single rule.
Series questions reward speed and the first difference rarely looks wrong in the first two gaps. Candidates stop testing once a plausible rule appears, so they miss two-level differences, alternating series, or products with an added constant that fit all six or seven terms.
What to do instead
Check in a fixed order: constant difference, then constant ratio, then second-level difference, then alternating/prime-based, then n²±k and n³±k. Accept a rule only if it explains every term, not just the first three. If two rules both fit, choose the one that is simpler and verify it reproduces the missing term exactly.
On multi-variable seating or floor puzzles, holding the arrangement in the head or scribbling disconnected clues instead of committing to a fixed grid, then re-deriving everything from scratch on each new clue.
Candidates believe a grid 'takes too long' and try to save time. Without a fixed layout, contradictions from negative clues are invisible, and one wrong placement silently poisons every later deduction. Time then disappears on a single puzzle.
What to do instead
Draw the grid before reading clue one: slots, floors or rows down one axis and the variables across the top. Write each clue as a symbol next to the grid, mark definite placements in ink and possibilities in pencil, and strike out options as they are eliminated. Apply a 90-second rule: if the grid is still mostly empty, leave the puzzle and return only after the rest of the section is secured.
In syllogism and 'possibility' questions, deciding conclusions by real-world plausibility instead of testing whether a Venn arrangement exists in which the conclusion holds.
Everyday reasoning treats 'some A are B' as implying 'some A are not B', which is invalid in formal logic. Under time pressure the brain substitutes a familiar fact for the formal check, so the option that sounds sensible gets marked instead of the one that is logically forced.
What to do instead
Draw the minimum-overlap diagram first, then ask for each conclusion whether a counter-diagram exists. For 'possibility' conclusions, the answer is yes whenever at least one valid arrangement satisfies it; for definite conclusions, the answer is yes only if every valid arrangement satisfies it. Practise the standard invalidity traps: converse of 'all', 'some not' from 'some', and complementary pairs.
Preparing General Awareness only from monthly current-affairs compilations and skipping the banking and financial component: policy rates, RBI functions, types of banks, NBFCs, insurance and priority-sector basics.
Current-affairs PDFs are easy to consume and feel productive, while banking terminology looks static and therefore postponable. In practice a large share of the awareness questions in a clerical exam is banking and financial awareness, and candidates lose those marks despite knowing the news.
What to do instead
Split awareness revision into two tracks: current affairs for the last six months, and a fixed banking glossary. For the glossary, memorise with exact figures: repo, reverse repo, CRR, SLR, MSF, bank rate, definitions of small finance banks, payment banks, NBFC and the institutions that regulate each. Rebuild the rate table after every monetary policy announcement.
Answering awareness questions from vague recall of a name or number - choosing between two schemes, headquarters or committees that sound alike - rather than from a verified fact, and never reviewing the pairs that keep getting confused.
Awareness is learned by recognition rather than recall, so an option 'looks familiar'. Because candidates never record which pairs they mix up, the same confusion repeats in the exam and each wrong guess also costs negative marks.
What to do instead
Maintain a one-page 'confusion table' with two columns of look-alike items (for example, the regulator versus the insurer, the scheme versus its ministry, the committee versus its subject), and update it after every mock. In the exam, answer only when you can state the fact without the options in front of you; otherwise leave it, since a blind guess has negative expected value.
Preparing Computer Aptitude by memorising history and generations of computers, and skipping the functional material: shortcut keys, file extensions, network topologies, number systems, memory units and basic security terms.
Old textbooks and free notes lead with evolution and abbreviations, which are easy to read and feel like syllabus coverage. The actual paper tests working knowledge - which shortcut does what, what a topology looks like, how to convert between binary and decimal - which requires active practice rather than reading.
What to do instead
Build and drill three compact tables: shortcut keys grouped by application (file, edit, formatting, browser), file extensions by category, and network topologies with their cost and fault-tolerance trade-offs. Practise 10 binary/decimal/hex conversions and 10 memory-unit conversions daily, and revise standard abbreviations (GUI, ISP, DNS, HTTP, firewall, malware types) until recall is instant.