Question 23

Jambmaths question: 

The pie chart above illustrates the amount of private time a student spends in a week studying various subjects. Find the value of k

Option A: 

15o

Option B: 

30o

Option C: 

60o

Option D: 

90o

Jamb Maths Solution: 

\[\begin{align}  & \text{Total angle in the pie chart is 36}{{\text{0}}^{\text{o}}} \\ & 2k+{{105}^{o}}+{{75}^{o}}+3k+k={{360}^{o}} \\ & 6k={{360}^{o}}-{{75}^{o}}-{{105}^{o}} \\ & 6k={{180}^{o}} \\ & k={{30}^{o}} \\\end{align}\]

Jamb Maths Topic: 
Year of Exam: