## Ratio and proportion

Ratio proportion concepts play a very important role in solving questions on mixture and alligation, percentage, ages, numbers systems and so on.

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Basic concepts on maths, mostly up to class 10. This is the most important math knowledge used in almost all competitive exams.

Submitted by Atanu Chaudhuri on Mon, 30/05/2016 - 20:49

Ratio proportion concepts play a very important role in solving questions on mixture and alligation, percentage, ages, numbers systems and so on.

Submitted by Atanu Chaudhuri on Fri, 27/05/2016 - 21:09

Trigonometry concepts: Trigonometry functions, function values, identities, compound angle, multiple angle functions, laws of sine and applications.

Submitted by Atanu Chaudhuri on Tue, 24/05/2016 - 12:08

Circle basic concepts: Chords, arcs, tangents, cyclic quadrilateral, angle subtended by a chord and secant of a circle with examples and exercise.

Submitted by Atanu Chaudhuri on Sun, 22/05/2016 - 23:03

Quadrilateral basic Concepts: Properties of a quadrilateral, polygons, squares, parallelograms, rhombus, cyclic quadrilateral with examples and exercise.

Submitted by Atanu Chaudhuri on Fri, 20/05/2016 - 19:46

Geometry basics points lines and triangles: Straight lines, parallel lines, angles, triangles, properties of triangles with examples and exercise.

Submitted by Atanu Chaudhuri on Wed, 18/05/2016 - 14:58

Fractions decimals basic concepts, arithmetic operations on fractions, conversion of fraction to decimal, rational irrational numbers, surds and more.

Submitted by Atanu Chaudhuri on Thu, 14/04/2016 - 08:30

Highest Common Factor or HCF is the largest factor that divides two or more numbers under consideration. It is the largest among all the factors common to the set of numbers under consideration. The LCM is the smallest number that is divisible by the set of given numbers. In other words, LCM is the least common multiple of the set of given numbers...

Submitted by Atanu Chaudhuri on Sun, 07/02/2016 - 11:18

In a problem with multiple parameters, identify the base to be equalized and its target value and equalize the bases. This is base equalizing technique.

Submitted by Atanu Chaudhuri on Sat, 30/01/2016 - 20:47

Base equalization technique produces quick solutions in indices problems. For fraction problems also, base equalization technique is indispensable.

Submitted by Atanu Chaudhuri on Thu, 28/01/2016 - 22:32

Selected examples explain how to use base equalization technique in solving indices problems elegantly. It also is indispensable for fraction problems.