Following data Printing, Paper, Binding, Adevertisment, Royality, Miscellaneoues

Question

Following data gives the break up of the cost of production of a book :

Printing	Paper	Binding	Advertisment	Royality	Miscellaneoues
30%	15%	15%	20%	10%	15%

Draw a pie diagram depicting the above information.

 

Answer 1

Here, total cost of production of book = 105 %

So, 

The central angle = \(\frac{component\,value}{105}\times360^\circ\)

Hence, 

the central angle for each activity will be calculated as follows

Item	Expenditure	Sector angle (degree)
Printing	30	30/105 x 360 = 102.9
Paper	15	15/105 x 360 = 51.4
Binding charges	15	15/105 x 360 = 51.4
Advertiesment	20	20/105 x 360 = 68.6
Royality	10	10/105 x 360 = 34.3
Miscellaneous	15	15/105 x 360 = 51.4

Steps for construction of representation of data in pie chart 

Step 1: Draw the circle of appropriate radius 

Step 2 : Choose a radius anywhere inside the circle. 

Step 3 : Now draw a sector of calculated component’s central angle. It is always preferable to choose component with largest central angle first and then continue in descending order of magnitude of their central angle. 

Step 4: After drawing sectors, shade them with different colours and label them as shown in the figure.