Notes and Study material for Exams
Unraveling the Mysteries of the Prehistoric Period: A Journey Through Time The prehistoric period, spanning from the dawn of humanity to the advent of written records, encompasses a vast and enigmatic chapter in our collective history. It is a time shrouded in mystery, where the whispers of our ancestors echo through the ages, leaving behind … Read more
Narrow Money: A Deep Dive into the Core of a Nation’s Liquidity Narrow money, often referred to as M1, represents the most liquid components of a country’s money supply. It encompasses those financial assets that can be readily used for transactions, providing a direct measure of the immediate purchasing power available in an economy. Understanding … Read more
Data Sufficiency in Statistics A sufficient statistic is a statistic that summarizes all of the information in a sample about a chosen parameter. For example, the sample mean, x̄, estimates the Population mean, μ. x̄ is a sufficient statistic if it retains all of the information about the population mean that was contained … Read more
Percentage Percent means for every 100 So, when percent is calculated for any value, it means that we calculate the value for every 100 of the reference value. percent is denoted by the symbol %. For example, x percent is denoted by x% x%=x/100 Example : 25%=25/100=1/4 To express x/y as a percent,we have x/y=(x/y×100)% Example : … Read more
MATHEMATICS AND QUATITUATIVE Aptitude – SIMPLE INTEREST Introduction Money is not free and it costs to borrow the money. Normally, the borrower has to pay an extra amount in addition to the amount he had borrowed. i.e, to repay the loan, the borrower has to pay the sum borrowed and the interest. Lender … Read more
The International Date Line (IDL) is an imaginary line of longitude on the Earth’s surface located at about 180 degrees east (or west) of the Greenwich Meridian. The International Date Line separates two consecutive calendar days. Immediately to the left of the International Date Line (the date) is always one day ahead of the date … Read more
The Global Positioning System consists of 24 satellites, that circle the globe once every 12 hours, to provide worldwide position, time and velocity information. GPS makes it possible to precisely identify locations on the earth by measuring distance from the satellites. GPS allows you to record or create locations from places on the earth and … Read more
The Certificate of Deposit: A Safe Haven for Your Savings In the ever-evolving landscape of personal finance, where investment options abound, the Certificate of Deposit (CD) stands as a beacon of stability and predictable returns. While it may not offer the explosive growth potential of stocks or the flexibility of a savings account, the CD … Read more
RELATIVE SPEEED AND TRAIN QUESTIONS Speed has no sense of direction unlike the velocity. Relative speed is the speed of one object as observed from another moving object. Questions on train are the classic examples of relative speed and in all these questions it is assumed that trains move parallel … Read more
Morale and Productivity of an Employee are higly interdependent. Morale is the most important Psychological state of mind of a person which is expressed as selfconfidence, loyalty toward an organization and/or enthusiasm. Morale of an employee determines the behavior either positively or negatively in an organization. Morale is directly related to employee motivation level and … Read more