Question

The following table gives the monthly expenditure of two families:

	Expenditure (in ₹)
Items	Family A	Family B
Food	3,500	2,700
Clothing	500	800
Rent	1,500	1,000
Education	2,000	1,800
Miscellaneous	2,500	1,800

In constructing a pie diagram to the above data, the radii of the circles are to be chosen by which one of the following ratios? 

A. 1 : 1 

B. 10 : 9 

C. 100 : 91 

D. 5 : 4 

Answer 1

Correct option  B. 10: 9

Explanation:

Total expenditure on the all items of family A = 10000 

Total expenditure on the all items of family B = 8100 

On pie chart, ratio of area of A and B = 10000:8100 = 100:81 

 ∴ Ratio of radii of A and B = √100 : √81 = 10:9