Question

The following pie-chart(not drawn to scale) shows the percentage distribution of the expenditure incurred in publishing a book. Study the pie-chart and answer the question.
Which two expenditure together have a central angle of ${108}^o$?

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

Answer 1

The correct option is A Binding and Transportation Cost

Central angle of ${108}^o=(\frac{108}{360}\times 100)\%$ of total expenditure.

Central angle of ${108}^o=30\%$ of the total expenditure.

From the pie chart it is clear that,

Binding cost + Transportation cost = $(20\%+10\%)$ of the total expenditure.

Binding cost + Transportation cost = $30\%$ of the total expenditure.

$\therefore$ Binding cost and transportation cost together have a central angle of ${108}^o$.