Tuesday, 21 February 2017

Simplification Concept ( Part I )


Simplification is one of the most important part of Quantitative Aptitude section of any competitive exam. Today I am sharing all the techniques to solve Simplification questions quickly.

Rules of Simplification
V → Vinculum
B → Remove Brackets - in the order ( ) , { }, [ ] 
O → Of
D → Division
M → Multiplication
A → Addition
S → Subtraction

Important Parts of Simplification

  • Number System
  • HCF & LCM
  • Square & Cube
  • Fractions & Decimals
  • Surds & Indices

    Number System

    • Classification
    • Divisibility Test
    • Division& Remainder Rules
    • Sum Rules

     Classification 

    Types
    Description
    Natural Numbers:
    all counting numbers ( 1,2,3,4,5....∞)
    Whole Numbers:
    natural number + zero( 0,1,2,3,4,5...∞)
    Integers:
    All whole numbers including Negative number + Positive number(∞......-4,-3,-2,-1,0,1,2,3,4,5....∞)
    Even & Odd Numbers :
    All whole number divisible by 2 is Even (0,2,4,6,8,10,12.....∞) and which does not divide by 2 are Odd (1,3,5,7,9,11,13,15,17,19....∞)
    Prime Numbers:
    It can be positive or negative except 1, if the number is not divisible by any number except the number itself.(2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61....∞)
    Composite Numbers:
    Natural numbers which are not prime
    Co-Prime:
    Two natural number a and b are said to be co-prime if their HCF is 1.

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