Chapter 1

Arithmetic Basics

Number systems and divisibility rules

medium • 1 min read

LCM and HCF: Shortcuts and applications

medium • 2 min read

Simplification and Approximation using BODMAS

medium • 3 min read

Fraction and Decimal conversion for computation

medium • 4 min read

Surds and Indices: Basic properties and problems

medium • 5 min read

Chapter 2

Ratio, Proportion and Average

Ratio, proportion and successive variation

medium • 1 min read

Averages of numbers, age and weight categories

medium • 2 min read

Concept of Weighted Average in mixtures

medium • 3 min read

Partnership: Investment and profit sharing ratio

medium • 4 min read

Alligation and mixture: Ratio of constituents

medium • 5 min read

Chapter 3

Profit, Loss and Discount

Profit and Loss calculations on CP/SP

medium • 1 min read

Discount: Result of successive percentages

medium • 2 min read

Dishonest dealer and markup price problems

medium • 3 min read

Simple and Compound Interest on sums

medium • 4 min read

Installment based problems in banking context

medium • 5 min read

Chapter 4

Time, Speed and Distance

Time and Work: Men-days and group efficiency

medium • 1 min read

Pipes and Cisterns: Tank filling and emptying

medium • 2 min read

Time and Distance: Relative speed and overtaking

medium • 3 min read

Boats and Streams: Upstream/Downstream speeds

medium • 4 min read

Trains: Length and platform crossing time

medium • 5 min read

Chapter 5

Equations and Number Series

Quadratic equations: Finding and comparing roots

medium • 1 min read

Number series: Identifying the missing number

medium • 2 min read

Wrong number identification in numeric series

medium • 3 min read

Linear equations with two variables solutions

medium • 4 min read

Inequalities comparison and root relations

medium • 5 min read