Ex 7.2, 5 - Chapter 7 Class 8 Comparing Quantities

Last updated at July 21, 2023 by

Slide13.JPG

Slide14.JPG
Slide15.JPG

Learn in your speed, with individual attention - Teachoo Maths 1-on-1 Class

Book a free demo

Transcript

Ex 7.2, 5 An 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 × Price = 18% × 𝑥 = 18/100 × 𝑥 = 𝟏𝟖𝒙/𝟏𝟎𝟎 Now, Bill Amount = Price + Tax Amount 1239 = 𝒙 + 𝟏𝟖𝒙/𝟏𝟎𝟎 1239 = (100𝑥 + 18𝑥)/100 1239 = 𝟏𝟏𝟖𝒙/𝟏𝟎𝟎 (1239 × 100)/118 = 𝑥 (21 × 100)/2 = 𝑥 2100/2 = 𝑥 1050 = 𝑥 𝒙 = 1050 ∴ Original Price = Rs 700 ∴ Original Price = Rs 1050

Ask a doubt
Davneet Singh's photo - Co-founder, Teachoo

Made by

Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.