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The monthly income of 100 families are given as below:
 
Income (in Rs) Number of families
0-5000 8
5000-10000 26
10000-15000 41
15000-20000 16
20000-25000 3
25000-30000 3
30000-35000 2
35000-40000 1
 
Calculate the modal income.
 
Answer:
 
The modal income =
 
[Note: Round off the answer to three decimal places.]