The pie chart shows the distribution of students in a secondary school class. If 30 students offered French, how many offered C.R.K?
25
15
10
8
Explanation
Video Explanation
No video available
Post your Contribution
Discussions (14)
Let the total number of students be Y
Since the number of French is given and we can deduce the angle from the diagram (i.e 90°)
(90/360) x Y = 30
Y = 30 x (360/90)
Y = 120 students
For CRK
Note, that's a straight line,
180° - 150° = 30°
Therefore, (30/360) x 120 = 10
There is no diagram in the question while the question asked us to refer to the diagram below
see that 30 is 90 degrees which is 1/4th of the circle so the total number is 120, half has been cut off by French and history, and in the remaining half CRK is 1/6th of it, so the number will be 1/6th of the remaining half. 1/6th of 60 is 10 baby gurl
