PIPES AND CISTERN ( LCM TRICKS)

Geometry

ज्यामिति - Geometry Hello friends! Today we are going to share a post on GEOMETRY which is an important Chapter for class 9,10,11,12 In Geometry there is many concept and some are more clear but some concepts is clear and give a doubt. We here try to clear you doubts. I request you to I you have an Question then comment we try to solve it and clear your all doubts. You join us on Facebook by All exam Gk And Daily Updated Questions. Polygon - A polygon is a closed shaped figure with three or more sides Here are some properties of Polygon (i) Sum of all the exterior angle of a polygon= 360° (ii) Each exterior angle of a regular polygon = 360° (iii) Sum of all the interior angles of a polygon = (n – 2) × 180° (iv) Each interior angle of a regular polygon = (v) No. of diagonals of a polygon = (vi) The ratio of sides a polygon to the diagonals of a polygon is 2 : (n – 3) (vii) Ratio of interior angle to exterior angle of a reg...

Percentage problems tricks(SSC,BANK,PO)

Percentage is a fraction whose denominator is always 100. x percentage is represented by x%. To express x% as a fraction : We know x% = x /100 Thus 10% = 10 /100 (means 10 parts out of 100 parts) = 1 /10 (means 1 part out of 10 parts) To express x/y as a percentage : We know that x /y = ( x /y× 100 ) Thus 1 /4 = ( 1 /4 ×100 )% = 25% and 0.8 = ( 8 /10 ×100 )% = 80% If the price of a commodity increases by R%, then reduction in consumption as not to increase the expenditure is- [ R / (100+R) ×100 ] % If the price of a commodity decreases by R%, then the increase in consumption as not to decrease the expenditure is - [ R / (100-R) ×100 ] % Result on Population : Let the population of a town be P now and suppose increases the rate of R% per annum, then : Population after n years = P ( 1+ R /100 ) n Population n years ago = P / ( 1+ R /100 ) n ...

Ratio and proportion short tricks

अनुपात समानुपात शार्ट ट्रिक्स Ratio and Proportion In this article we are going to share some important and interesting short tricks of ratio and proportions questions in Hindi as well as English questions. With the help of this tricks students will learn how to solve ratio and proportions problems in very few minutes. It's very important for those candidates who are appearing in various competitive examination. Ratio:- The division of two numbers is known as Ratio. It is denoted by (:). Example: 5:7 or 5/7 , 2:3 or 2/3 etc. Type and Ratio Short Trick 1: If A : B = X : Y and B : C = P : Q ,then:- A : C = X x P : Y x Q A : B : C = (X : Y) x P :Y x Q = X x P : Y x P : Y x Q or A ...

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