M--> Male;Akansha wrote:What fraction of graduating students at college X are male?
a. 33% of males and 20% of females transferred from another college
b. 25% of all students transferred
OA is C
F---> Female;
GS----> graduating students;
M+F=GS;
1).33M+.2F; transfered from another college; as we don't know what percentage of graduating student consist of transfered students,, hence 1 alone is sufficient.
2) transfered students=.25GS, but as we don't know about the composition of male and female candidates who are the part of these transfered students, hence 2 alone is also not sufficient to answer the question.
combining 1 and 2 we have;
.33M+.2F=.25GS;
also we know; M+F=GS;
.33M+.2F=.25GS;
.2M+.2F=.2GS;
.13M=.05GS
M=5/13GS;
hence answer should be C
