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Staff Selection Commission conducts many national level exams from stenographer exam to combined graduate level exam. The one thing that remains same is their syllabus, type of questions and number of sections. As far as aptitude section is concerned, the only different thing from the rest of the exams is the questions form Algebra, trigonometry and Geometry including few other topics. You can get study materials, formulas, questions on topics such as work and time, heights and distance, pipes and cisterns, probability and other general aptitude topics.

Here you can find mathematics formulas specially for questions from Algebra, trigonometry and geometry. You can download these PDF files and note down all the important formulas or simply save it in your mobiles so that you can access them at any point of time. You must practice previous years questions and try to apply formulas in it. It’s the best way to remember maths formulas.
Below are the PDF files of formulas to be downloaded :

Math Made Nice & Easy #9: Integration Formulas, Combinations & Permutations and Probability (Mathematics Learning and Practice) 

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Basic math formulas

Average formula: 

Let a1,a2,a3,......,an be a set of numbers, average = (a1 + a2 + a3,+......+ an)/n

Fractions formulas: 





Converting a mixed number to an improper fraction:


Converting an improper fraction to a mixed number:


Formula for a proportion: 


In a proportion, the product of the extremes (ad) equal the product of the means(bc), 

Thus, ad = bc


Percent to fraction: x% = x/100

Percentage formula: Rate/100 = Percentage/base

Rate: The percent. 
Base: The amount you are taking the percent of.
Percentage: The answer obtained by multiplying the base by the rate

Consumer math formulas: 

Discount = list price × discount rate

Sale price = list price − discount

Discount rate = discount ÷ list price

Sales tax = price of item × tax rate

Interest = principal × rate of interest × time

Tips = cost of meals × tip rate

Commission = cost of service × commission rate

Geometry formulas: 


Perimeter of a square: s + s + s + s 
s:length of one side

Perimeter of a rectangle: l + w + l + w
l: length
w: width

Perimeter of a triangle: a + b + c
a, b, and c: lengths of the 3 sides


Area of a square: s × s 
s: length of one side

Area of a rectangle: l × w
l: length
w: width

Area of a triangle: (b × h)/2
b: length of base
h: length of height

Area of a trapezoid: (b1 + b2) × h/2
b1 and b2: parallel sides or the bases
h: length of height


Volume of a cube: s × s × s 
s: length of one side

Volume of a box: l × w × h
l: length
w: width
h: height

Volume of a sphere: (4/3) × pi × r3
pi: 3.14
r: radius of sphere

Volume of a triangular prism: area of triangle × Height = (1/2 base × height) × Height
base: length of the base of the triangle
height: height of the triangle
Height: height of the triangular prism

Volume of a cylinder:pi × r2 × Height
pi: 3.14
r: radius of the circle of the base
Height: height of the cylinder

For More Mathematics Formulas Visit Gklinkzone.blogspot.com


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