GMAT Quantitative Practice
1. (8 + 2)2 =
A: 68
B: 81
C: 100
D: 36
2. If y = 3, then 3y +2y2 =
A: 45
B: 36
C: 15
D: 24
3. Factor: x2 - 8x + 16
A: (x + 4)(x - 4)
B: (x - 4)(x - 4)
C: (x + 3)(x + 5)
D: (x + 8)(x + 2)
4. Find the slope of a line that passes through (4, 12) and (2, 14).
A: 1
B: 0
C: -1
D: 2
5. Rob is tiling a bathroom. In one hour he lays 81 tiles, 30% of the total. If he lays 1/3 of
the remaining tiles in the next hour, how many tiles does he lay in the second hour?
A: 55
B: 63
C: 75
D: 65
6. Solve: (x7)3 =
A: x21
B: x10
C: x4
D: x-10
In each of the following four problems, a question is followed by two statements containing certain information. You must decide whether the data provided by the statements is sufficient to answer the question.
7. Is a < b ?
1) a + b > 0
2) a - b > 0
A: Statement 1 by itself is sufficient to answer the question, but statement 2 by itself is
not.
B: Statement 2 by itself is sufficient to answer the question, but statement 1 by itself is
not.
C: Statements 1 and 2 together are sufficient to answer the question, even though neither
statement by itself is sufficient.
D: Either statement by itself is sufficient to answer the question.
E: Statements 1 and 2 taken together are not sufficient to answer the question.
8. What is b?
1) b3 + 1 = 9
2) 2b2 = 8
A: Statement 1 by itself is sufficient to answer the question, but statement 2 by itself is
not.
B: Statement 2 by itself is sufficient to answer the question, but statement 1 by itself is
not.
C: Statements 1 and 2 together are sufficient to answer the question, even though neither
statement by itself is sufficient.
D: Either statement by itself is sufficient to answer the question.
E: Statements 1 and 2 taken together are not sufficient to answer the question.
9. What is the area of the irregular four-sided figure ABCD?
1) AB is 6
2) BC is 8
A: Statement 1 by itself is sufficient to answer the question, but statement 2 by itself is
not.
B: Statement 2 by itself is sufficient to answer the question, but statement 1 by itself is
not.
C: Statements 1 and 2 together are sufficient to answer the question, even though neither
statement by itself is sufficient.
D: Either statement by itself is sufficient to answer the question.
E: Statements 1 and 2 taken together are not sufficient to answer the question.
10. What is the price of 3 pens and 2 pencils?
1) 2 pens and 1 pencil cost $1.25.
2) 1 pencil costs 25 cents.
A: Statement 1 by itself is sufficient to answer the question, but statement 2 by itself is
not.
B: Statement 2 by itself is sufficient to answer the question, but statement 1 by itself is
not.
C: Statements 1 and 2 together are sufficient to answer the question, even though neither
statement by itself is sufficient.
D: Either statement by itself is sufficient to answer the question.
E: Statements 1 and 2 taken together are not sufficient to answer the question.
Answer Key
1. C. Remember the order of operations: calculate the parentheses before working with the exponents.
2. A. Substitute the value given for y into the equation and solve.
3. B. Remember that the factors must be such that the polynomial is reformed by the multiplication according to FOIL.
4. C. The equation for slope is (y2 - y1)/(x2 - x1)
5. B. Determine the total number of tiles with the equation: 81/x = 30/100. Then divide the total number of tiles by 3.
6. A. In this situation, the exponents only should be multiplied.
7. B. Since a - b is a positive number, a cannot be smaller than b.
8. D. Either of these statements would be sufficient to calculate the value of b.
9. E. Because the figure is irregular, the information supplied is insufficient.
10. C. In order to determine the price of the pens, you must use the information from the second statement in the first statement.