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  1. Chapter 8 Class 7 Comparing Quantities
  2. Serial order wise
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Example 8 Out of 25 children in a class, 15 are girls. What is the percentage of girls? Total number of children = 25 Number of girls = 15 Percentage of girls = (๐‘๐‘ข๐‘š๐‘๐‘’๐‘Ÿ ๐‘œ๐‘“ ๐‘”๐‘–๐‘Ÿ๐‘™๐‘ )/(๐‘‡๐‘œ๐‘ก๐‘Ž๐‘™ ๐‘›๐‘ข๐‘š๐‘๐‘’๐‘Ÿ ๐‘œ๐‘“ ๐‘โ„Ž๐‘–๐‘™๐‘‘๐‘Ÿ๐‘’๐‘›) ร— 100% = 15/25 ร— 100% = 3/5 ร— 100% = 3 ร— 20% = 60%

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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.