(begin{array}{cc} text{Age in years} & 13 & 14 & 15 & 16 & 17 \ hline text{No. of students} & 3 & 10 & 30 & 42 & 15end{array})
The frequency distribution above shows the ages of students in a secondary school. In a pie chart constructed to represent the data, the angles corresponding to the 15 years old is

A.
27^{o} 
B.
30^{o} 
C.
54^{o} 
D.
108^{o}
Correct Answer: Option D
Explanation
Number of 15 year old pupils = 30.
Total number of students: 3 + 10 + 30 + 42 + 15 = 100.
Angle = (frac{30}{100} times 360°)
= (108°)