Age in years
7
8
9
10
11
No of pupils
4
13
30
44
9
The table above shows the number of pupils in a class with respect to their ages. If a pie chart is constructed to represent the age, the angle corresponding to 8 years old is
A
48.6°
B
56.3°
C
46.8°
D
13°
Verified Correct Answer: C.
Step-by-Step Mathematical Solution
Total number of pupils : 4 + 13 + 30 + 44 + 9 = 100
The number of 8 - year olds = 13
The angle represented by the 8-year olds on the pie chart = \(\frac{13}{100} \times 360^\circ\)
= 46.8^\circ
Source: Myschool Past Questions Archive (Record #54946)