Mock tests

Quantitative Aptitude 14 papers

Percentages, ratios, time and work, numbers, probability, DI.

Quantitative Aptitude — Percentages, Ratios & Interest

Core number skills every placement test opens with: percentages, ratios, averages, profit and loss, and simple and compound interest.

Quantitative Aptitude — Time, Work, Speed & Trains

Rate-based problems that dominate campus tests: time and work, speed-distance-time, pipes and cisterns, and trains crossing poles, platforms and each other.

Percentages

Percentage of a number, successive rises and falls, and the classic salary, marks, population and price-consumption sums.

Ratio & Proportion

Splitting sums in a given ratio, combining two ratios, changes in the terms, proportion, and partnership profit sharing.

Profit, Loss & Discount

Cost price, selling price and margin sums, marked price with single and successive discounts, false weights and paired sales.

Simple & Compound Interest

Simple interest, rate and time back-calculations, compound amounts, the CI minus SI shortcut, half-yearly compounding and depreciation.

Averages, Alligation & Mixtures

Averages that shift when someone joins or leaves, corrected entries, weighted averages, alligation ratios and repeated replacement in a mixture.

Time & Work, Pipes & Cisterns

One-day work rates, efficiency ratios, the men-days chain rule, workers leaving midway, wage sharing and filling or emptying pipes.

Time, Speed & Distance

Speed conversions, average speed, late-and-early sums, relative speed, trains crossing poles and platforms, boats in a stream and races.

Number System, HCF & LCM

HCF and LCM including word problems, divisibility rules, remainders of large powers, unit digits, counting factors and digit puzzles.

Permutations & Combinations

Counting with the multiplication rule, arrangements of words with repeated letters, circular seating, and selections including committee conditions.

Probability

Dice and coin outcomes, cards, drawing balls from a bag, the complement rule for at-least questions and independent events.

Mensuration (2D & 3D)

Areas and perimeters of rectangles, squares, triangles and circles, paths around a field, and the surface area and volume of cuboids, cylinders, cones and spheres.

Data Interpretation

Three self-contained data sets - a placement table, a sales bar chart and an expenditure statement - read for totals, percentages, ratios and growth.

Logical Reasoning 9 papers

Series, coding-decoding, blood relations, seating, syllogisms, puzzles.

Logical Reasoning — Series, Coding, Relations & Directions

Pattern-spotting practice covering number and letter series, coding-decoding, blood relations, direction sense, and odd one out.

Number & Letter Series

Spot the rule behind a run of numbers or letters and supply the missing term, the wrong term or the odd one out.

Coding-Decoding

Work out the rule a code uses - letter shifts, reversals, number substitution or an invented language - and apply it to a fresh word.

Blood Relations

Untangle who is whose what - photograph riddles, relation chains, coded relation symbols and in-law links.

Direction Sense & Distance

Track a walker through left and right turns and work out the final direction, the net displacement and the shortest distance back.

Syllogisms

Decide which conclusions must follow from two given statements, taking the statements as true even when they contradict everyday facts.

Seating Arrangement

Fix people into a row or around a table from a handful of clues, then read off neighbours, ends and opposite seats.

Analytical Puzzles

Pin down a floor order, a stack of boxes, a weekly schedule or a person-to-attribute matching from a short list of clues.

Data Sufficiency

Judge whether the given statements are enough to answer the question - without actually needing to finish the calculation.

Verbal Ability 7 papers

Grammar, sentence correction, synonyms, para jumbles, comprehension.

Verbal Ability — Vocabulary, Grammar & Paragraph Sense

English practice for placement screens: word meanings in context, sentence correction, arranging jumbled sentences, and one-word substitution.

Reading Comprehension

Read a short passage and answer questions whose answers are stated outright in the text.

12 questions 20 min ◆ 25

Grammar & Error Spotting

Each sentence is split into four parts and exactly one part breaks a standard rule of English grammar - find it.

Sentence Correction

Choose the best replacement for the underlined part of a sentence, or decide that it is already correct.

Synonyms & Antonyms

Pick the word closest in meaning, or opposite in meaning, to a given word - alone or as it is used in a sentence.

12 questions 10 min ◆ 25

Para Jumbles

Rearrange four scrambled sentences into the one order in which every pronoun and connector has something to refer back to.

Fill in the Blanks

Choose the one word that fits the blank - the right verb, preposition or shade of meaning for the sentence.

Programming 10 papers

Output questions in C, C++, Python and Java — the ones interviewers ask.

C Programming — Predict the Output

Short C programs where you trace pointers, arrays, strings, scope and integer arithmetic to work out exactly what gets printed.

Python Basics — Predict the Output

Small Python snippets covering mutability, slicing, dictionaries, comprehensions and the gotchas that trip up beginners in interviews.

C — Operators, Precedence & Type Conversion

Predict the output of small C programs that hinge on integer arithmetic, type conversion, precedence and printf behaviour.

C — Pointers, Arrays & Strings

Trace pointer arithmetic, array decay and standard string functions in short C programs.

C — Functions, Scope, Storage Classes & Recursion

Trace static variables, block scope, pass-by-value and recursive call patterns in C.

C++ — References, Overloading & STL Basics

Predict the output of C++ programs using references, default arguments, overloading, vector, map, set and sort.

Python — Lists, Dicts, Sets, Tuples & Slicing

Predict the output of Python snippets built on slicing, aliasing, mutability and the built-in containers.

Python — Functions, Comprehensions & Closures

Predict the output of Python functions involving default arguments, *args/**kwargs, scope, closures and common gotchas.

Java — Primitives, Strings, Arrays & Static

Predict the output of small Java programs covering primitive conversions, String identity, array defaults and static members.

Recursion & Iteration Tracing

Hand-trace recursive and iterative routines in C and Python and predict exactly what they print.

12 questions 18 min ◆ 25

Computer Science Core 10 papers

Complexity, data structures, sorting, DBMS, OS and networks.

Data Structures & Algorithms — Core Concepts

Complexity, sorting properties and the behaviour of stacks, queues, linked lists, trees and hash tables — the theory questions that open most placement tests.

OOP & DBMS — Interview Fundamentals

The object-oriented ideas and database basics that come up in almost every campus interview: inheritance, polymorphism, normalisation, keys, joins and ACID.

Time & Space Complexity Analysis

Work out the exact asymptotic time and space cost of loops, recurrences and standard operations.

Arrays & Strings — Algorithms and Complexities

Standard array and string techniques - two pointers, prefix sums, Kadane, rotation - and what each one actually costs.

Linked Lists, Stacks & Queues

Costs of linked-list operations and hand-traces of stack and queue behaviour, including postfix evaluation.

Trees, BST, Traversals & Heaps

Trace binary tree traversals, reason about BST properties and heap operations, and count nodes.

Graphs — BFS, DFS & Shortest Paths

Trace breadth-first and depth-first search, run Dijkstra by hand, and reason about graph representations.

Sorting & Searching Properties

Hand-trace sorting passes and pin down stability, in-place behaviour and best/average/worst-case costs.

DBMS — SQL Semantics, Joins, Keys & Normalisation

Evaluate SQL against small given tables (including NULL traps) and answer on keys, normal forms and ACID.

12 questions 18 min ◆ 25

Operating Systems & Computer Networks

Scheduling calculations, memory management and deadlock, plus the OSI/TCP-IP model and core protocols.

12 questions 18 min ◆ 25