Question

On a particular day, the sales (in rupees) of different items of a baker’s shop are given below.

ordinary bread	320
fruit bread	80
cakes and pastries	160
biscuits	120
others	40
Total	720

Draw a pie chart for this data.

Answer 1

We find the central angle of each sector. Here the total sale = Rs. 720. We thus have this table.

Item	Sales (In Rs.)	In Fraction	Central Angle
Ordinary Bread	320	${\displaystyle \frac{320}{720}=\frac{4}{9}}$	${\displaystyle \frac{4}{9}\times 360°=160°}$
Fruit Bread	80	${\displaystyle \frac{80}{720}=\frac{1}{9}}$	${\displaystyle \frac{1}{9}\times 360°=40°}$
Cakes and pastries	160	${\displaystyle \frac{160}{720}=\frac{2}{9}}$	${\displaystyle \frac{2}{9}\times 360°=80°}$
Biscuits	120	${\displaystyle \frac{120}{720}=\frac{1}{6}}$	${\displaystyle \frac{1}{6}\times 360°=60°}$
Others	40	${\displaystyle \frac{40}{720}=\frac{1}{18}}$	${\displaystyle \frac{1}{18}\times 360°=20°}$

Now, we make the pie chart: