Recent Articles

Number Systems #1

May 22, 2022

Number Systems forms the base for Quantitative Ability and clearing of concepts is important for CAT and other management exams. A measurement carried out, of any quantity, leads to a meaningful value called the Number. This value may be positive or negative depending on the direction of the measurement and can be represented on the number line.

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Pipes and Cisterns

May 20, 2022

Pipes are connected to a tank or cistern and are used to fill or empty the tank. Inlet is a pipe connected with a tank or a cistern or a reservoir, that fills it. Outlet is a pipe connected with a tank or a cistern or a reservoir, emptying it.

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Time and Work

May 19, 2022

In daily life, there are situations where we need to complete a particular job in a reasonable time. We have to complete the project earlier or later depending upon the needs. Accordingly, the men on duty have to be increased or decreased. The time and the men engaged for a project are inversely proportional to each other. The more the number of men involved, the lesser is the time required to finish a job.

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Profit and Loss

May 18, 2022

Business transactions have now-a-days become common feature of life. When a person deals in the purchase and sale of any item, he either gains or loses some amount. The aim of any business is to earn profit.

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Ratio and Proportion

May 16, 2022

Ratio is a relation between two quantities or numbers. It is a relation that one quantity bears to another with respect to magnitude. A ratio of a and is denoted by a : b and is read as a is to b. In a ratio, the first part (a) is called antecedent and second part (b) is called consequent.

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Averages

May 15, 2022

Average is defined as the ratio of sum of the quantities to the number of quantities. Average or mean is said to be a measure of central tendency.

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Number Systems #2

May 13, 2022

Representing a number as prime factors helps in analysing problems.

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Divisibility Rules

May 12, 2022

A divisibility rule is a method to determine whether a given integer is divisible by a fixed divisor without performing the division. You can do this by examining the digits of the integer.

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Probability

May 10, 2022

Probability is the likelihood or chance of an event occurring.

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Permutation & Combination

May 09, 2022

Combination & Permutation deals with arrangement of thing. If the order doesn't matter, then it is called Combination. If the order does matter, then it is a Permutation.

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Progressions

May 07, 2022

A Progression is a sequence of numbers which have some kind of relation. This relation determines what kind of a progression is.

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Quadratic Equations

May 06, 2022

Linear Equation can have degree of at most 1 and has only one solution. Quadratic Equation can have degree of at most 2 and has two solutions.

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