11. Below is a table showing the birth rate and death rate per thousand population during different periods: List-I (Year) 1961–71 1971–81 1981–91 List-II (Birth Rate per Thousand) 39.9 41.7 41.1 List-III (Death Rate per Thousand) 27.4 22.8 18.9 From the above table, during which period did the maximum increase in population occur?

12. Difference of sales of two newspapers having maximum circulation (sale) is:

13. Difference of sales of newspapers having maximum and minimum sales is:

14. Ratio of circulation of newspaper E in Rajasthan and Madhya Pradesh is:

15. Sale of newspaper A in Madhya Pradesh is x times the sale of newspaper D in Haryana. Then the value of x is:

16. Ratio (up to two decimal places) of the sales of newspapers having maximum sales in two states is:

17. If expenditure on electricity and water is ₹800, then how much is the expenditure on food?

18. If expenditure on education of children is ₹20,000, then what is the house rent?

19. If ₹17,500 is the difference between expenditure on the items having maximum and minimum expenditure, then what is the income of the family?

20. Ratio of expenditure of two items having maximum expenditure and expenditure of three items having minimum expenditure is: