Fundamental Arithmetical Operations

Scope: Percentage questions covering conversions, increase/decrease, reverse percentages, successive changes and applications.

Scope: Square-root questions covering perfect squares, fractions, decimals, estimation, factor methods and applications.

Scope: Average questions covering arithmetic mean, missing values, combined groups, replacement, correction and applications.

Scope: Interest questions covering simple interest, compound interest, principal, rate, time, amount, compounding periods and applications.

Scope: Profit-and-loss questions covering cost price, selling price, gain and loss percentages, successive sales, equal selling prices, false weights, expenses and applications.

Scope: Discount questions covering marked price, selling price, discount amount and rate, successive discounts, equivalent discount, rebates and profit-linked applications.

Scope: Partnership questions covering capital ratios, investment periods, joining and withdrawal, working-partner commission, changing capital and multi-partner profit sharing.

Scope: Mixture and alligation questions covering weighted mean, price alligation, concentration, dilution, replacement, milk-water mixtures, repeated operations and alloys.

Scope: Time and distance questions covering speed-time-distance, unit conversion, average speed, relative motion, trains, circular tracks, races, boats and delayed starts.

Scope: Time and work questions covering work rates, efficiency, worker-days, joining and leaving workers, pair-rate equations, pipes, cisterns and leaks.