Question

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

Answer 1

B)27
To solve this problem using a double set matrix, first jot down one set of variables as the row headings and The other as column headings, as well as a row and column for “totals”. Now all you need to do is add in the information line by line as you read through the question.