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Piyush365
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Asked: 2026-10-05T07:29:10+00:00 In:

Whole class project: Each student shares the average age of their family and the number of family members. Discuss among the class and come up with a way to find out the average age of all the families of the class.

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Multiply each student’s family average age by their family size to find total family years. Sum these values and divide by total members across all families for the combined mean.

Class 9 maths Chapter 10 How Quantities Combine Understanding Data solutions
Class 9 maths Ganita Manjari Part 2 book and Solutions

average age of all the families of the classcbse released class 9 ganita manjari part 2 bookdiscuss among the class and come upeach student shares the average ageganita manjari part 2 solutions available!how quantities combine understanding data (ganita manjari 2) solutions
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    1. A simple average of the family averages is incorrect because family sizes vary. Instead, calculate the weighted average. Each student multiplies their family’s average age by their total family member count to determine total family years. Sum these total years across the entire class, then divide by the aggregate number of people across all families combined.

       

      For more NCERT Solutions of Class 9 Maths Ganita Manjari Part 2 Chapter 10 How Quantities Combine Understanding Data Question Answer (2026-27)

      https://www.tiwariacademy.com/ncert-solutions/class-9/maths/ganita-manjari-chapter-10/

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