- In a certain solution, the ratio of water to alcohol is 3:1. If water and
alcohol combined make up half of the volume of the solution, what
percentage of the solution is water?
A 12.5%
B 25%
C 37. 5%
D 50%
E 75% - At Bridgewood High School, freshmen, sophomores, juniors, and seniors
are in the ratio of 3:4:6:7, respectively. Which of the following CANNOT
be the total number of students at the school?
A 40
B 80
C 90
D 100
E 14 0 - A solution of alcohol and water contains alcohol and water in the ratio of
1:8. If the entire solution is 31.5 ounces, how many ounces of water are in
the solution?
A 4.5
B 9
C 16
D 27
E 28 - At a certain company, the ratio of managers to directors is 5:3. If 10 of
the managers become directors, the new ratio will be 7:5. How many
managers are currently at the company?
A 30
B 90
C 14 0
D 150
E 240 - In a certain orchestra, the ratio of cello players to viola players is 4:5. If
there are 2 more viola players than cello players, how many viola players
are there?
A 8
B 9
C 10
D 11
E 12
248 PART 4 ■ MATH REVIEW03-GRE-Test-2018_173-312.indd 248 12/05/17 11:53 am