## Missing Letter Puzzle for Interviews, Placement and Competitive Exams

MISSING LETTER PUZZLES Answer : K Explanation : The numerical values of the letters in opposite segments of the circle always add up to 17.…

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# Learning

## Missing Letter Puzzle for Interviews, Placement and Competitive Exams

## Missing Number puzzles: Interviews, Placements and Competitive Exams

## Shortcuts on Square Roots and Cube Roots

## Lateral Thinking Puzzles

## Important algebra identities and questions

## Tips and Tricks to solve aptitude problems on Mixtures and Alligation

## Tricks to solve surds and indices

## Important Formulas of Pipes and Cistern

## Tips and Tricks related to Stocks and Shares

## Short cut tricks to find square root and cube root of a number

MISSING LETTER PUZZLES Answer : K Explanation : The numerical values of the letters in opposite segments of the circle always add up to 17.…

MISSING NUMBER PUZZLES Answer : 6 Explanation : Looking at the diagram in rows, the central circle equals half the sum of the numbers…

Square Roots and Cube Roots To find the square root of a number, you want to find some number that when multiplied by itself gives you the…

LATERAL THINKING PUZZLES LATERAL THINKING:The solving of problems by an indirect and creative approach, typically through viewing the problem in a new and unusual light.…

Some Basic Formulae: (a + b)(a – b) = (a2 – b2) (a + b)2 = (a2 + b2 + 2ab) (a – b)2 = (a2 + b2 – 2ab) (a + b + c)2 = a2 + b2 + c2 + 2(ab + bc + ca) (a3 + b3) = (a + b)(a2 – ab + b2) (a3 – b3) = (a – b)(a2 + ab + b2) (a3 + b3 + c3 – 3abc)…

Alligation:It is the rule that enables us to find the ratio in which two or more ingredients at the given price must be mixed to…

Laws of Indices: am x an = am + n am = am – n an (am)n = amn (ab)n = anbn a n = an b bn a0 = 1 Surds:Let a be rational number and n be a positive integer such…

Inlet:A pipe connected with a tank or a cistern or a reservoir, that fills it, is known as an inlet.Outlet: A pipe connected with a…

Stock Capital:The total amount of money needed to run the company is called the stock capital. Shares or Stock:The whole capital is divided into small units,…

CUBE ROOT OF A NUMBER REMEMBERING UNITS DIGITS: First we need to remember cubes of 1 to 10 and unit digits of these cubes. The…