The MegaTek Corporation is displaying its distribution of employees by department in a circle graph. The size of each sector of the graph representing a department is proportional to the percentage of total employees in that department. If the section of the circle graph representing the manufacturing department takes up 144° of the circle, what percentage of MegaTek employees are in manufacturing? Pick one
A) 20 % B) 25 % C) 30 % D) 40 % E) 72 %

Rationale: answer : d 144 ° divided by 360 ° equals 0.4 , therefore the sector is equal to 40 % of the total
Answer: D