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  1. Chapter 8 Class 7 Comparing Quantities
  2. Serial order wise
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Example 16 A school team won 6 games this year against 4 games won last year. What is the per cent increase? Number of games won this year = 6 Number of games won last year = 4 Increase in number of games won = 6 βˆ’ 4 = 2 Percentage increase = (πΌπ‘›π‘π‘Ÿπ‘’π‘Žπ‘ π‘’ 𝑖𝑛 π‘›π‘’π‘šπ‘π‘’π‘Ÿ π‘œπ‘“ π‘”π‘Žπ‘šπ‘’π‘  π‘€π‘œπ‘›)/(π‘π‘’π‘šπ‘π‘’π‘Ÿ π‘œπ‘“ π‘”π‘Žπ‘šπ‘’π‘  π‘€π‘œπ‘› π‘™π‘Žπ‘ π‘‘ π‘¦π‘’π‘Žπ‘Ÿ) Γ— 100% = 2/4 Γ— 100% = 1/2 Γ— 100% = 50%

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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.