Category Archives: Articles

Profit and Loss is a topic that is definitely asked in every placement exam. While the questions are not too tricky, some require deeper understanding… Read More »

Problems on ages basically use formulae from Algebra and do not require any special formula. It is like a question type of algebra. Sample Problems… Read More »

Algebra questions basically involve modeling word problems into equations and then solving them. Some of the very basic formulae that come handy while solving algebra… Read More »

Mixture is a combination of two or more elements to form a third element. The questions from mixture are usually based on Ratio and Proportion… Read More »

Ratio and Proportion Ratio of two quantities ‘a’ and ‘b’ having same units is simply a / b and is usually written as a:b The… Read More »

Percentages is an important topic not only from QA point of view, but also because of its extensive use in Data Interpretation. Percentage means per… Read More »

We recommend that you read about Time Speed Distance before proceeding on with this topic. Trains If two trains are moving in same direction with… Read More »

Time, Speed and Distance (popularly known as TSD) is an important topic for written round of placements for any company. Distance = Speed x Time… Read More »

Pipes and Cisterns are somewhat similar to the concepts of Work and Wages. The problems of pipes and cisterns usually have two kinds of pipes,… Read More »

If a person can do a piece of work in ‘n’ days, then in one day, the person will do ‘1/n’ work. Conversely, if the… Read More »

Factors and Multiples : All the numbers that divide a number completely, i.e., without leaving any remainder, are called factors of that number. For example,… Read More »

TYPES OF NUMBERS Integers : All numbers whose fractional part is 0 (zero) like -3, -2, 1, 0, 10, 100 are integers. Natural Numbers :… Read More »