Hello,
For the following:
A business school event invites all of its graduate and undergraduate students to attend. Of the students who attend, male graduate students outnumber male undergraduates by a ratio of 7 to 2, and females constitute 70% of the group. If undergraduate students make up 1/6 of the group, which of the following CANNOT represent the number of female graduate students at the event?
A) 18
B) 27
C) 36
D) 72
E) 180
OA: B
I tried to solve using a Double Set Matrix:
------------------Male--------Female---------Total
Graduate 7x 2x 9x
Under Graduate - - (1/6)100
Total 30 70 100
Is it correct here to take the Total as 100 since it is mentioned that females constitute 70% of the group or should the total be an unknown x? Thanks for your help.
Regards,
Sri
For the following:
A business school event invites all of its graduate and undergraduate students to attend. Of the students who attend, male graduate students outnumber male undergraduates by a ratio of 7 to 2, and females constitute 70% of the group. If undergraduate students make up 1/6 of the group, which of the following CANNOT represent the number of female graduate students at the event?
A) 18
B) 27
C) 36
D) 72
E) 180
OA: B
I tried to solve using a Double Set Matrix:
------------------Male--------Female---------Total
Graduate 7x 2x 9x
Under Graduate - - (1/6)100
Total 30 70 100
Is it correct here to take the Total as 100 since it is mentioned that females constitute 70% of the group or should the total be an unknown x? Thanks for your help.
Regards,
Sri
