Important Shortcuts & Formulas on Problem Based on Ages: Ex. 1: The age of the father 3 years ago was 7 times the age of his son. At present, the father’s age is five times that of his son. What are the present ages of the father and the son? Ex. 2: At present, the age of the father is five times the age of his son. Three years hence, the father’s age would be four times that of...

Pipes & Cisterns Problems related to pipes & cisterns are similar to those of time and work but with a slight difference of conceptual agents like inlets & outlets. Basic Terms: Inlet: A pipe which is used to fill up the tank,cistern or reservoir is known as 'Inlet'. This type of nature indicates 'plus' or 'positive type' of work done. Outlet: A pipe which is used t...

Profit and Loss | Definitions, Formulas, Solved Problems: Basic Definitions and Formulas Cost price (C.P.): This is the price at which an article is purchased. Selling price (S.P.): This is the price at which an article is sold. Profit or Gain: If the selling price is more than the cost price, the difference between them is the profit incurred. Formula: Profit or Gain = S.P. – C.P...

Clock Problems: Basic Concept of Clocks: A clock is a complete circle having 360 degrees. It is divided into 12 equal parts i.e. each part is 360/12 = 30°. As the minute hand takes a complete round in one hour it covers 360° in 60 min. In 1 minute it covers 360/60 = 6°/ minute. Also, as the hour hand covers just one part out of the given 12 parts in one hour. This implies it covers ...

Time and Distance: Speed is a very basic concept in motion which is all about how fast or slow any object moves. We define speed as distance divided by time. Distance is directly proportional to Velocity when time is constant. Speed Distance Time formula is mathematically written as:- Speed = distance/time Formula: Distance = Speed x Time Generally use this formula we can find the...

Reasoning high level puzzles: Q. (1 – 5) Study the following information carefully to answer the given questions. There is an apartment in Delhi. The eight members have decided to play some games around a round table facing to the center, so their eight members are P, Q, R, S, W, X, Y and Z. Each person has different cars viz; Swift, i20, Honda City, Duster, Accent, Bolero, Scorpio a...

Quadratic equation: Often, the simplest way to solve "ax2 + bx + c = 0" for the value of x is to factor the quadratic, set each factor equal to zero, and then solve each factor. But sometimes the quadratic is too messy, or it doesn't factor at all, or you just don't feel like factoring. While factoring may not always be successful, the Quadratic Formula can always find the solution. ...

IBPS - Computer Notes General Computer Awareness – Definition Charles Babbage is considered to be the father of computing/the computer after his invention and concept of the Analytical Engine in 1837. But 1941 marks the birth year of computer technology with the invention of the Z3 by a German engineer Konrad Zuse. Definition of a Computer: A computer is an electronic machine made ...