Aptitude and Reasoning Formulas

Surds and Indices

Strong And Weak Arguments Introduction: Some examinations consist of question based on identifying strong and weak arguments .In thes...

Formulas on H.C.F and L.C.M 1)Factors and Multiples: If number a divided another number b exactly, we say that a is a fac...

Input and Output Introduction Some of the competitive examinations give question on a pattern generally known as "Input and Outp...

Time and Work Work from Days: If A can do a piece of work in  n  days, then A's 1 day's work = 1 . n Days from Work: I...

Analogy: Analogy means 'similarity'.Analogy questions ask you to determine the relationship between a pair of words and then to ...

Coding and Decoding The Coding and Decoding Test is designed to test the candidate's ability to find the rule under which a message ...

Cause and Effect Introduction: Cause and Effect: Questions based on cause and effect test the ability of  the candidate to determin...

Numbers Formulas 1. Prime Number: A Prime Number is a number which has factors only unity and itself. Example:2,3,5,7.......... 2....

Number Series Some Basic Formula: (a + b)(a - b) = (a2 - b2) (a + b)2 = (a2 + b2 + 2ab) (a - b)2 = (a2 + b2 - 2ab) (a + b + c)2...