The pie chart shows the distribution of students in a secondary school class. If 30 students offered French, how many offered C.R.K?
Attached Figure / Diagram
A
25
B
15
C
10
D
8
Verified Correct Answer: C.
Step-by-Step Mathematical Solution
Total number of students (y) using the subject French
( 90 / 360 )º x Y = 30
Y = 30 x 4
Y = 120
History- 90º + French- 90º + Economics- 150º + CRK = 360º
CRK = 360º - 330º = 30º
Number that offered CRK:
( 30 / 360 )º x 120 = 10
Source: WAEC / JAMB / NECO Classroom Archive (Record #30945)