Quantitative aptitude, reimagined

Get sharp at quant, one puzzle at a time.

Short concept lessons, three-stage practice, step-by-step solutions and an error notebook that remembers what you miss. Built for CAT, GMAT, SSC, IBPS and every test that counts.

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  • 16 topics, 69 lessons
  • Easy, medium and hard practice
  • Every answer explained

How it works

Learn it, drill it, fix it.

A simple loop that turns a shaky concept into a reflex.

  1. 1

    Learn the idea

    Short lessons with a formula, a worked example and the mistakes to avoid. No videos to sit through.

  2. 2

    Practise in stages

    Every lesson has an easy, a medium and a hard stage. Hints when you need them, full solutions when you are done.

  3. 3

    Review what you missed

    Wrong answers land in your error notebook and analytics point you at the topics that need work.

Topics

Pick a topic and dive in

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Percentages

Master the language of parts and wholes — from basic conversions to successive changes and real-world applications.

5 lessons

Profit & Loss

Master the mechanics of buying and selling — from basic profit and loss calculations to discounts, marked price,…

5 lessons

Ratio & Proportion

Master the language of comparison — from simplifying ratios and solving proportions to dividing quantities, compound ratios, and…

5 lessons

Time & Work

Master work-rate reasoning — from a single worker's daily output to combined teams, wage-sharing, and pipes filling or…

4 lessons

Time, Speed & Distance

Master speed, distance, and time relationships — from basic calculations to relative speed, trains, and boats & streams.

5 lessons

Simple & Compound Interest

Master simple and compound interest calculations, including different compounding frequencies and how to compare SI and CI outcomes.

4 lessons

Practice tools

Everything you need to get faster and more accurate.

Daily workout

Five fresh questions every day, the same set for everyone. Keep the streak alive and watch your score climb.

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Problem bank

Browse every question by topic, difficulty and status, then solve exactly what you need.

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Analytics

See weak topics, accuracy trends and how your speed compares, so you practise where it counts.

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Error notebook

Every miss is saved with its explanation and comes back for review until you own it.

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From the blog

Tricks, shortcuts and worked examples

All posts

Probability Theory

Permutations and Combinations

In this post, you will learn about fundamental counting principle, permutation and combination and their relation, circular permutations, permutations when some are…

3 min read

Ready for your first lesson?

Pick a topic, learn the idea and try a few questions in minutes.

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