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# comparing quantities

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• INTEREST COMPOUND
• PERCENT
• COMPARING QUANTITIES
• -THRESHANTH JAYAKUMAR-8D 8431
• MATH ACTIVITY
• DISCOUNT
• %
• Vlad and Roma are friends and they arestudying in same school
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• Present day, teacher thought a new lesson 'comparing quantities'
• Hey Romacome here
• After school got over Vlad called Roma
• Roma is week in mathematicshe usually scores less marks in maths
• So Vlad decided to teach the concept to Roma
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• What?
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• I will teach you maths today come to park
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• Compound interest is the interest calculated on the principal and the interest accumulated over the previous period. It is different from simple interest, where interest is not added to the principal while calculating the interest during the next period. In Mathematics, compound interest is usually denoted by C.I.
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• what is compound interest?
• I will teach you to solve problems in each concept and I will tell what is compound interest
• Ok Thank you Vlad I will to park
• They both came to parkVlad started to teach roma
• Eg :C.P=840 S.P=714 = 840-714 =126
• For finding discount we have a formuladiscount=C.P-S.P
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• See Roma we have 3 main concepts in comparing quantities1.Discount2.Percentage3.Compound interest
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• Vlad: I hope you understand the concept well
• Roma :Ya, Thanks Vlad for teaching me
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• 17/40=.425*100%=42.5%
• For finding percentage we have a formulaP=PARTS/WHOLE*100%
• Eg;P=17W=40