CGPSC Prelims Paper II 2015 Solved Paper

The following Pie chart shows the expenditure of a family on different items based on its monthly income.
Where
A: Expenditure on education of children
B: House rent
C: Expenditure on electricity and water
D: Expenditure on vehicle, telephone and maintenance
E: Expenditure on food

Question are based on the chart given above. Answer these questions.
If Rs. 17,500 /- be the difference of expenditure on items having maximum and minimum expenditure, then what is the income of the family ?