Question

Draw two pie diagrams to represent the marks obtained by Isha and Utkarsh (out of 50) in an examination.

Subject	Isha	Utkarsh
Maths	40	37
Economics	35	45
Accounts	45	40
Commerce	46	34
English	34	44

Answer 1

The percentage values are converted into degree values using the following formula.
$$\begin{gathered} \mathrm{Degree}\mathrm{share}=\frac{\mathrm{Percentage}\mathrm{share}}{100}\times 360 \\ =\mathrm{Percentage}\mathrm{share}\times 3.6 \end{gathered}$$

Subject	Marks obtained by Isha	Percentage Value	Degree Share
Maths	40	$\frac{40}{200}\times 100=20$	20 × 3.6 = 72°
Economics	35	$\frac{35}{200}\times 100=17.5$	17.5 × 3.6 = 63°
Accounts	45	$\frac{45}{200}\times 100=22.5$	22.5 × 3.6 = 81°
Commerce	46	$\frac{46}{200}\times 100=23$	23 × 3.6 = 82.8°
English	34	$\frac{34}{200}\times 100=17$	17 × 3.6 = 61.2°
Total	200		360°

Subject	Marks obtained by Utkarsh	Percentage Value	Degree Share
Maths	37	$\frac{37}{200}\times 100=18.5$	18.5 × 3.6 = 66.6°
Economics	45	$\frac{45}{200}\times 100=22.5$	22.5 × 3.6 = 81°
Accounts	40	$\frac{40}{200}\times 100=20$	20 × 3.6 = 72°
Commerce	34	$\frac{34}{200}\times 100=17$	17 × 3.6 = 61.2°
English	44	$\frac{44}{200}\times 100=22$	22 × 3.6 = 79.2°
Total	200		360°