The ratio of male to female in a class is 2:7. the career preference of the students in the class are to be represented in a circle graph. If the area of the graph allocated to each career preference is to be proportional to the number of students who have that career preference, how many degrees of the circle should be used to represent a career that is preferred by one third of the males and two-third of the females in the class?
Choices
A) a)160 degree
B) b) 168 degree
C) c)191 degree
D) d)192 degree
E) e)213 degree
here is my approach =&gt; males =&gt; 2x and females =7x =&gt; total =9x   now 9x=&gt; 360   therefore 16x/3 =&gt; 213 degree .   P.S =&gt; 16x/3 is nothing but total number of students with the given preference   Answer e)213 degree
<result>E</result>
The ratio of male to female in a class is 2:7. the career preference of the students in the class are to be represented in a circle graph. If the area of the graph allocated to each career preference is to be proportional to the number of students who have that career preference, how many degrees of the circle should be used to represent a career that is preferred by one third of the males and two-third of the females in the class?