Permutations and Combinations – Concept Explained Easily  Do you always confuse  “permutation” and “combination” — which one’s which? In case order/position of Subject matter’s, it is permutation else it is combination. Permutation –  Example – let’s say you have to chose Prime minister and Finance minister out of 4 MP’s. […]

How to master Permutations and Combinations concept.

SSC CGL Latest Syllabus :: Tier-1 Syllabus: In the CGL Tier-1, there will be 100 Multiple Choice Questions (MCQ’s) to be asked from 4 Sections viz. English , Reasoning, Quantitative Aptitude and General Awareness. Each section has 25 Questions and Each Question carry 2 marks. The Total Duration of Tier-1 […]

SSC New Format, Syllabus and Duration

Mental Calculations – Getting the result fast Addition of 5 When adding 5 to a digit greater than 5, it is easier to first subtract 5 and then add 10. For example, 7 + 5 = 12. Also 7 – 5 = 2; 2 + 10 = 12. Subtraction of […]

Fast Arithmetic Tips

  Trigonometric Formulas Trigonometric ratio is a ratio that describes a relationship between a side and angle of a triangle. The six trigonometric ratios (sin x, cos x, tan x, csc x, sec x, cot x) relate the sides of a right triangle to its angles. The trigonometric ratios are functions […]

Trigonometric Formulas

HOW TO CALCULATE SQUARES UPTO 125 IN 5 SECONDS The only thing you have to do is to remember squares till 25 and remember them so well that if someone calls you in the night at 2 and asks you that what is square of 24 then you should say its […]


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