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Percentage - basics , word problems based on percentage

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Percentage - percentage means for every hundred. A percentage is a number or ratio that represents a fraction of 100. It is often denoted by the symbol "%" or simply as "percent"  New Number When a Number Is Increased/Decreased by a Certain Percent       Word Problems Based On Percentage  Question 1 Ramola’s monthly income is three times Kavita’s monthly income. Kavita’s monthly income is 25% more than Ruchi’s monthly income. Ruchi’s monthly income is Rs. 34000. What is Ramola’s Annual income?  Answer - Question 2  Five-ninth of sixty two percent of a number is equal to 2790. What is the number?  
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Ratio And Proportion Concept , Tricks , Examples

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Ratio And Proportion In Mathematics ratios and proportion is a very important concept. Let us understand the concepts with the help of examples and solved questions. Ratios Ratios are the mathematical numbers used to compare two things that are similar to each other in terms of units. For example, we can compare the length of a pencil to the length of a pen likewise distance to a unit that denotes distance. We can’t compare two things that are not similar to each other. Similarly, we can’t compare the height of a person to the weight of another person. As an illustration, suppose the weight of Rohan is 150 kg and the weight of Sohan is 300kg. A ratio of Rohan’s weight to Sohan’s weight can be found out by dividing Rohan’s weight to Sohan’s weight and vice versa. The ratio between Rohan’s and Sohan’s weight is 150/300= 1:2. A ratio is denoted by ‘:’. In the above case, we can say that 2 times the weight of Rohan equals the weight of Sohan or Rohan’s weight is half of Sohan...
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Simplification - Introduction, VBODMAS Rule, Some Important Formula

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In this post we will discuss what is simplification, VBODMAS Rule, and some important formula related to simplification.  SIMPLIFICATION  Simplification is a process of reducing a complex arithmetical expression into a simple expression. A Simple technique for arranging the expression into the proper sequence is chronologically involved VBODMAS Rule which is explained below Following formulae are useful in various Operations on simplification
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