average age of all the families of the class – Discussion Forum

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Piyush365

Asked: October 5, 2026In: Class 9 Maths

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.

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