Revise in 3 minutes, the night before
25 topics, written to be read on a phone the evening before your test: the formulas that matter, one worked example each, and the traps that cost easy marks. Original content by OptiResume, free forever.
Quantitative Aptitude14
The quant chapters every placement test draws from, compressed to the formulas and the reflexes.
Percentages
Percentages power half of quant: profit and loss, interest, data interpretation. Master the multiplying factor and everything else gets faster.
8 cards · 3-minute recapReviseProfit & Loss
Every profit and loss question is a percentages question wearing a shop apron. Anchor everything to cost price and you cannot get lost.
8 cards · 3-minute recapReviseRatio & Proportion
Ratios are the grammar of quant: ages, mixtures, partnerships and speeds all speak it. Two moves matter, combining ratios and splitting totals.
8 cards · 3-minute recapReviseAverages
Average questions are sum questions in disguise. Convert every statement to a total, work with totals, convert back at the end.
7 cards · 3-minute recapReviseTime, Speed & Distance
Trains, boats and races are one identity, distance = speed x time, plus relative speed. Get the unit conversion reflex right and the rest is bookkeeping.
8 cards · 3-minute recapReviseTime & Work
One idea runs the whole chapter: rate of work. Pick the total work as an LCM number and every question becomes small-number arithmetic.
7 cards · 3-minute recapReviseSimple & Compound Interest
SI grows in a straight line, CI grows on itself. Most questions test whether you can switch between the two formulas and spot compounding periods.
7 cards · 3-minute recapReviseProblems on Ages
Age problems are tiny linear equations dressed in stories. Fix 'now' as your reference point and translate each phrase carefully.
6 cards · 3-minute recapRevisePermutations & Combinations
One question decides everything: does order matter? Yes means permutation (arrange), no means combination (choose). Then count stage by stage.
8 cards · 3-minute recapReviseProbability
Probability is counting twice: favorable outcomes over total outcomes. Most placement questions use coins, dice, cards and balls, so learn those sample spaces cold.
7 cards · 3-minute recapReviseNumber System
HCF, LCM, remainders and digits: the oldest chapter in the book and still the first section of most tests. A handful of identities does all the work.
9 cards · 3-minute recapReviseMixtures & Alligation
Alligation is weighted averages drawn as a cross. It answers one question fast: in what ratio do I mix cheap and dear to hit a target value?
7 cards · 3-minute recapReviseLogarithms
Logs turn multiplication into addition and powers into products. A handful of rules cracks most log questions in seconds, no calculator needed.
6 cards · 3-minute recapReviseMensuration
Areas, perimeters, surface areas and volumes of the standard shapes. Memorize the sheet, watch your units, and these turn into free marks.
6 cards · 3-minute recapRevise
Logical Reasoning4
Blood relations, syllogisms, seating and directions, the puzzle rounds, cracked with a diagram and a fixed method.
Blood Relations
Decode who is whose father, aunt or nephew from a chain of clues. Draw a quick family tree with symbols and these stop being confusing.
6 cards · 3-minute recapReviseSyllogisms
Given statements like 'All A are B', decide which conclusions MUST follow. Venn diagrams turn word logic into shapes you can read straight off.
6 cards · 3-minute recapReviseSeating Arrangement
People around a table or in a row, with clues about who sits where. A clean diagram and a fixed facing direction crack almost every one.
6 cards · 3-minute recapReviseDirection Sense
Track a person turning left and right across a grid and find their final direction or distance from the start. Draw it and use Pythagoras.
6 cards · 3-minute recapRevise
Verbal Ability3
Comprehension, grammar and sentence ordering, the English section, reduced to the rules that matter and the traps to dodge.
Reading Comprehension
Answer questions on a passage you have never seen. Read for structure, not every word, and let the text, not your opinion, pick the answer.
6 cards · 3-minute recapReviseSentence Correction
Spot the grammar error and fix it. A handful of rules, subject-verb agreement, tense, and modifiers, catch the vast majority of exam sentences.
6 cards · 3-minute recapRevisePara Jumbles
Reorder shuffled sentences into a coherent paragraph. Find the opening line, follow the linking words, and the sequence falls into place.
6 cards · 3-minute recapRevise
Technical4
The four subjects every Indian tech interview quizzes you on, answered the way interviewers expect to hear them.
Operating Systems
OS questions test whether you understand what really happens when programs run. These are the answers interviewers expect, in the words you can actually say.
11 cards · 3-minute recapReviseDBMS
Every fresher round asks DBMS, and most of it is ten questions recycled. Here they are with answers you can say in one breath.
12 cards · 3-minute recapReviseComputer Networks
Networking interviews orbit one story, what happens when you type a URL, plus a few sharp comparisons. Learn the story and the comparisons follow.
10 cards · 3-minute recapReviseOOP
OOP questions check if you can go beyond definitions to design judgment. Learn the four pillars with one example each, then the language staples for your interview language.
11 cards · 3-minute recapRevise
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