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  1. Chapter 8 Class 8 Comparing Quantities
  2. Serial order wise
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Transcript

Ex 8.2, 10 I purchased a hair-dryer for Rs 5,400 including 8% VAT. Find the price before VAT was added. The price includes VAT means that bill amount has Price + VAT Given Amount Paid (Bill Amount) = 5400 Vat Percentage = 8% Let the Original Price = ๐‘ฅ Tax Amount = Vat Percentage ร— Original Price = 8% ร— ๐‘ฅ = 8/100 ร— ๐‘ฅ = 8๐‘ฅ/100 Now, Bill amount = Original Price + Tax Amount 5400 = ๐‘ฅ + 8๐‘ฅ/100 5400 = (100๐‘ฅ + 8๐‘ฅ)/100 5400 = (108 ๐‘ฅ)/100 (5400 ร— 100)/108 = ๐‘ฅ (2700 ร—100)/54 = ๐‘ฅ (1350 ร— 100)/27 = ๐‘ฅ (450 ร—100)/9 = ๐‘ฅ 50 ร— 100 = ๐‘ฅ 5000 = ๐‘ฅ โˆด ๐‘ฅ = 5000 โˆด Original Price = Rs 5000

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 8 years. He provides courses for Maths and Science at Teachoo. You can check his NCERT Solutions from Class 6 to 12.