Question 1 - Page 107 - Tinkering with Mean - Chapter 5 Class 8 - Tales by Dots and Lines (Ganita Prakash II)

Last updated at July 17, 2026 by

Try to explain this using the fair-share interpretation of average - Tinkering with Mean

part 2 - Question 1 - Page 107 - Tinkering with Mean - Chapter 5 Class 8 - Tales by Dots and Lines (Ganita Prakash II) - Class 8 (Ganita Prakash - 1, 2 & Old NCERT)

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Question 1 - Page 107 Try to explain this using the fair-share interpretation of average that you learnt last year. Imagine a group of friends have different amounts of chocolates, but if they pooled them together and shared equally (the mean), everyone would get exactly 10 chocolate Now, imagine a rule is made that every single friend must give away 2 of their chocolates. Because every individual lost 2 , the new "fair share" for everyone drops by exactly 2 . The new mean is 8 chocolates Thus, we can say If number a is added to each term New Mean = Old mean + a If number b is subtracted to each term New Mean = Old mean – b

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