IBSAT common mistakes
IBSAT · Understand the traps and how to avoid them.
Reading the four options in a synonym/antonym question and picking the one that 'sounds most academic' rather than the word closest in meaning to the stem.
IBSAT Verbal Ability rewards precision, but candidates under time pressure default to familiarity; a rare-looking word feels like the 'exam answer', so they choose it without checking the dictionary sense against the stem in a sentence.
What to do instead
Before looking at options, write a one-word definition of the stem in the margin. Then test each option by substituting it back into a short sentence with the stem. Eliminate any option whose connotation (positive/negative) or register (formal/colloquial) differs, and only then choose.
Answering para-jumble and para-summary questions by arranging sentences in the order they 'flow' narratively, without first identifying the opening sentence and the mandatory pairs.
Candidates read all sentences as a story and trust intuition; they skip the structural clues (pronouns, definite articles, connectors like 'however', 'therefore', chronological markers) that determine the only logically valid sequence.
What to do instead
Use a fixed two-step routine: (1) find the sentence that introduces a new noun with no backward reference - that is the opener; (2) link every pronoun, 'this', 'such', and connector to its antecedent to build forced pairs. Eliminate options that break a forced pair, then confirm the opener and closer.
Treating Reading Comprehension as a memory test - reading the passage once, then answering from general impression and outside knowledge instead of returning to the text for each question.
The passage feels understood on first read, so candidates answer from gist; inference and 'author's tone' questions then get answered with what the candidate believes rather than what the passage supports, and trap options that are true in the real world get selected.
What to do instead
For every question, locate and underline the one or two lines that justify the answer before choosing. For inference questions, reject any option that requires information not in the passage, even if it is factually true. For tone questions, collect the author's evaluative adjectives first, then match.
Choosing an RC option that is a near-verbatim copy of a passage phrase without checking whether it answers the specific question asked.
The exam deliberately plants 'word-match' distractors that repeat passage language but distort scope, degree, or subject; recognition memory fires before comprehension, so the familiar phrasing wins.
What to do instead
Re-read the question stem and identify exactly what is being asked (cause, main idea, exception, author's attitude). Then verify the option against the passage for scope words - 'all', 'only', 'primarily', 'some' - and reject options whose quantifier is stronger or weaker than the text.
Solving Quantitative Aptitude problems by setting up full algebra when a numerical-value or ratio shortcut would finish in a fraction of the time, then running out of time before the later sections.
School training rewards formal method and 'showing work'; under exam conditions candidates default to the familiar full solution and do not practise option-based or assumption-based solving, so each question costs three to four times the budgeted time.
What to do instead
Drill a substitution habit: for percentage, ratio, and average questions, plug simple numbers (100, LCM of denominators) instead of variables. For word problems, back-solve from the options. Time-box each question to about 60–75 seconds and move on; practise this in timed sets of 20, not untimed.
Misreading the base in percentage and profit-and-loss questions - computing a 20% increase then a 20% decrease as 'no change', or applying successive discounts additively.
The percentages look symmetric, so the intuition 'they cancel' overrides the multiplicative logic; candidates also apply the second percentage to the original value instead of the new value.
What to do instead
Always write the multiplier form: +20% then −20% is 1.2 × 0.8 = 0.96, a 4% net decrease. For successive discounts use (1−d1)(1−d2). Fix the base explicitly in writing ('base = cost price') before computing profit percentage.
In Data Sufficiency, solving the question fully and then choosing the option that matches the computed answer, instead of judging whether each statement alone is sufficient.
The habit of 'find the answer' carries over from ordinary maths; candidates never test each statement in isolation, so they mark 'both together sufficient' when statement 1 alone already decides it, or vice versa.
What to do instead
Cover the statements and read the question; then test statement 1 alone with the other hidden, and commit to sufficient/not sufficient in writing. Repeat for statement 2 alone. Only if both fail do you combine. Never carry a value from statement 1 into your evaluation of statement 2.
Assuming a unique value exists when a Data Sufficiency statement yields multiple valid values, and marking it sufficient because one workable number was found.
Candidates stop at the first solution that satisfies the statement; they do not ask whether other values also satisfy it, especially with variables that can be negative, fractional, or zero, or with even powers and absolute values.
What to do instead
After finding one value, actively hunt for a second: test 0, 1, negatives, fractions, and both signs of a square root. If two different values satisfy the statement but give different answers to the question, the statement is insufficient. Record 'one value vs many values' explicitly.
In Data Interpretation, computing every cell of a table or chart before looking at the questions, then doing long division to three decimal places for a comparison question.
The set looks like an accounting exercise and candidates want to 'understand the data first'; the resulting arithmetic load burns time and invites calculation slips on numbers that only needed ranking.
What to do instead
Read the questions first and note which figures each one needs. For comparison questions, use approximation and percentage-change ratios rather than exact values. Check the units, base year, and whether the chart shows absolute values or percentages before computing anything.
Spending equal time on every question across sections, so an early hard RC passage or a single DI set consumes the budget and the easiest marks in later sections are never attempted.
IBSAT is sectional and time-bound; candidates fear leaving blanks and treat all questions as equally valuable, so sunk-cost thinking keeps them on a question they cannot solve while easy questions go unattempted.
What to do instead
Adopt a three-pass strategy per section: first pass all easy and familiar questions, second pass medium ones, third pass only if time remains. Mark and skip any question after the time cap. Since there is typically no penalty for wrong answers, ensure every question is marked with a reasoned guess before the section closes.