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Ex 8.2, 11 ο»ΏAn article was purchased for Rs 1239 including GST of 18%. Find the price of the article before GST was added? Given, Amount Paid (Bill Amount) = Rs 1239 GST Percentage = 18% Let the original Price = x Tax Amount = GST Percentage Γ— Price = 18% Γ— π‘₯ = 18/100 Γ— π‘₯ = πŸπŸ–π’™/𝟏𝟎𝟎 Now, Bill Amount = Price + Tax Amount 1239 = 𝒙 + πŸπŸ–π’™/𝟏𝟎𝟎 1239 = (100π‘₯ + 18π‘₯)/100 1239 = πŸπŸπŸ–π’™/𝟏𝟎𝟎 (1239 Γ— 100)/118 = π‘₯ (21 Γ— 100)/2 = π‘₯ 2100/2 = π‘₯ 1050 = π‘₯ 𝒙 = 1050 ∴ Original Price = Rs 700

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Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths and Science at Teachoo.