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AVERAGE - Concept, Formula ,

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AVERAGE   average " refers to the arithmetic mean, the sum of the numbers divided by how many numbers are being averaged   Average = Sum of Observations/Number of Observations => S = A × N Important Points To Remember a) If all the numbers are increased by ‘a’, then their average will also be increased by ‘a’. b) If all the numbers are decreased by ‘a’, then their average will also be decreased by ‘a’. c) If all the numbers are multiplied by ‘a’, then their average will also be multiplied by ‘a’. d) If all the numbers are divided by ‘a’, then their average will also be divided by ‘a’ Some Important Formulas Related To Average Word Problems With Answer Based On Average
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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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Profit and Loss Concept, Formula

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Hello friends, in this post we will discuss about profit and loss. Profit is when we earn some money after transaction of amount in business and Loss is when we loss some money after transaction in business. There are two types of prices in business one at which we purchase the product known as Cost Price and second at which we sell the product known as Selling Pri ce. If CP is higher than SP then we earn some money in transaction known as profit and If SP is higher than CP then we loose some money in transaction known as loss.  All the above concept and formula are summarized in the following image as at which we purchase the product and second post is completely for beginners so I tried to explain each and everything in words too In next post we will discuss some tips and tricks to save time in examination to score good marks. To know about the latest post please follow my blog. 
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