Ratio and Proportion
November 09, 2023
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.
November 04, 2023
The terms percent means for every hundred. Percentage is a way of expressing a number as a fraction of 100. It is denoted by using the percent sign, %. For example, when a person made a profit of 20 percent, it means that the person gained Rs. 20 for every hundred rupees invested in the business. Scoring 60 percent marks means out of every 100 marks the candidate scored 60 marks.
Number Systems #1
October 22, 2023
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.
Time and Work
October 13, 2023
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.