Question

The table shows the number of marks scored by four students in an exam .
$$\begin{array}{cc}Student& Marksscored\\ 1& 90\\ 2& 75\\ 3& 45\\ 4& 60\end{array}$$
What is the angle of sector in a pie chart representing the marks of student 3?

• A. ${162}^{\circ }$
• B. ${142}^{\circ }$
• C. ${180}^{\circ }$
• D. ${135}^{\circ }$

Answer 1

The correct option is A

${162}^{\circ }$

Total marks = 100.
Marks scored by student 3 = 45
100 marks is equivalent to ${360}^{\circ }$.
$\therefore$ 45 =$\frac{45}{100}\times 360={162}^{\circ }$