solve with diagram

Dear Student,
Income Cumulative Sum % of Cumulative Sum (Income) No. of Persons Cumulative Sum % of Cumulative Sum (Persons)
10 10 10 8 8 32
20 30 30 7 15 60
30 60 60 5 20 80
25 85 85 3 23 92
15 100 100 2 25 100
           
Sum : 100     Sum : 100    

Diagram :-

Note : This diagram is roughly made without taking Scales. You are required to prepare the same on Graph paper with proper measurement.
Regards

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