In one day the sales (in rupees) of different items of a baker’s shop are given below:
Question:

In one day the sales (in rupees) of different items of a baker’s shop are given below:

ItemsOrdinary breadFruit breadCakes and PastriesBiscuitsOthersTotal
Sales (in Rs)260401006020480

Draw a pie-chart representing the above sales.

Solution:

We know:

Central angle of a component = (component value/sum of component values × 360)

Here, total sales = Rs 480

Thus, the central angle for each component can be calculated as follows: 

ItemSale (in Rs)Sector angle
Ordinary bread260260/480 × 360 = 195
Fruit bread4040/480 × 360 = 30
Cakes and pastries100100/480 × 360 = 75
Biscuits6060/480 × 360 = 45
Others2020/480 × 360 = 15

Now, the pie chat representing the given data can be constructed by following the steps below:

Step 1 : Draw circle of an appropriate radius.

Step 2 : Draw a vertical radius of the circle drawn in step 1.

Step 3 : Choose the largest central angle. Here, the largest central angle is 195o. Draw a sector with the central angle 195o in such a way that one of its radii coincides with the radius drawn in step 2 and another radius is in its counter clockwise direction.

Step 4 : Construct other sectors representing other items in the clockwise direction in the descending order of magnitudes of their central angles.

​Step 5 : Shade the sectors with different colours and label them, as shown as in the figure below.​​

Administrator

Leave a comment

Please enter comment.
Please enter your name.