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  1. Chapter 9 Class 6 Data Handling
  2. Serial order wise
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Ex 9.4, 4 Number of persons in various age groups in a town is given in the following table. Draw a bar graph to represent the above information and answer the following questions. (take 1 unit length = 20 thousands)Given that scale 1 unit length = 20 thousands i.e 1 unit length = 20000 Our table is actually 1 Unit length = 20 thousand 1 Unit length = 20 thousand (a) Which two age groups have same population?30 - 44 & 45 – 59 have same population 120000 (b) All persons in the age group of 60 and above are called senior citizens. How many senior citizens are there in the town?Number of senior citizens = Number of people in 60 - 74 + Number of people in 75 & above = 80000 + 40000 = 120000 = 1 lakh 20 thousands

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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.