1.  Which two expenditures together have a central angle of 108º ?

A. Binding Cost and Transportation Cost
B. Printing Cost and Paper Cost
C. Royalty and Promotion Cost
D. Binding Cost and Paper Cost

Answer: Option A

Explanation:

Central angle of 108º =  108/360 x 100 % of the total expenditure
= 30% of the total expenditure.

From the pie-chart it is clear that :
Binding Cost and Transportation Cost
= (20% + 10%) of the total expenditure
= 30% of the total expenditure.

 Binding Cost and transportation Cost together have a central angle of 108º.