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Master the GMAT |
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Data Sufficiency Drill |
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web.support.for |
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Master the GMAT |
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Data Sufficiency Drill |
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20 Questions |
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Time--30 minutes |
Directions: Each of the following items
consists of a question followed by two statements labeled (1) and
(2). You must determine whether the information provided in the
additional statements is sufficient to answer the question. You
should rely on your knowledge of mathematics and on well-known facts
(such as the number of days in a week). Answer:
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1.
If Amie purchased a new golf club and a package of golf balls, what was
the cost of the golf club? (1)
The total cost of the golf club and the package of golf balls was $125. (2)
The ratio of the cost of the golf club to the cost of the package of
golf balls was 4:1.
2. In the coordinate plane, if line L passes through the origin and point (x,y), what is the slope of L? (1)
x = y (2)
x = 3
3.
Is x < y? (1)
x < z (2)
y < z 4.
If x and y are integers, what is the value of x? (1)
x = y2 (2)
xy = 8
5.
Is the area of a rectangle with width of x and length of y
an integer? (1)
x is an integer. (2)
y/x is an integer.
6.
If a piece of wire is cut into three pieces of unequal lengths, what is
the length of the longest of the pieces? (1)
The combined length of the shorter two pieces is 36 feet. (2)
The combined length of the longer two pieces is 40 feet.
7.
Pipe X fills a swimming pool to its capacity in 36 hours. If Pipe
X and Pipe Y each supply water independently of the other,
how many hours will it take Pipe X and Pipe Y together to
fill the swimming pool to capacity? (1)
The capacity of the swimming pool is 24,000 gallons. (2)
Pipe Y alone would require the same number of hours to fill the
swimming pool to capacity as Pipe X.
8.
If sales tax equal to 5 percent of the selling price of an item
was collected by a store owner, what was the selling price of the item? (1)
The selling price of the item plus the sales tax totaled $136.50. (2)
The selling price of the item was 200 percent of the $65 cost to the
store owner.
9.
What is the ratio of m to n? (1)
The ratio of 0.20m to 2n is 2:3. (2)
m is four times one more than n.
10.
If the degree measure of one of the interior angles of a triangle
is 30, what is the length of the longest side? (1)
The length of the side opposite the 30° angle is 3 (2) The degree measure of one of the interior angles is 60.
11.
What percent of the students at public College X are in-state
students? (1)
Exactly 35 percent of the female students and 55 percent of the male
students are in-state students. (2)
The ratio of in-state students to
out-of-state students is 9:2.
12.
If m is an integer, is m/2 an even integer? (1)
m/4 is an integer. (2)
m/2 is an integer. 13.
What is the volume of a certain cube? (1)
The total surface area of the cube is 24. (2) The diagonal of the cube has a length of 2 multiplied by the square root of 3.
14.
In a triangle with angles of degree measures x, y, and z,
which are opposite sides A, B, and C, respectively, is x
+ y > z? (1)
x = y (2)
C2 <A2 + B2
15.
Purchasers of a certain electronic device are given the option of
expanding the factory-installed RAM memory capacity at a cost of $60 per
additional megabyte of memory capacity. What is the size, in megabytes,
of the factory-installed memory capacity? (1)
The cost of expanding the memory capacity by 50 percent is $240. (2)
A version of the device with expanded memory costing $240 has 3/4 as much memory as a
version of the device with an expanded memory costing $480. 16.
If 50 percent of those who request information about a certain MBA
program actually apply for admission to the program, what percent of
those who request information eventually enroll in the program? (1)
Twenty percent of those who apply are extended offers of acceptance. (2) Fifty percent of those who receive offers of acceptance enroll in a different MBA program.
17.
A school district deposited surplus funds totaling $90,000 into two
separate accounts
for a period of one year. Part of the $90,000 was put into an account
earning 3 percent simple interest and the rest into an account earning 5
percent simple interest. How much was put into the account earning 3
percent simple interest? (1)
The amount deposited by the school district into the account earning 5
percent was twice the amount deposited into the account earning 3
percent. (2)
The total interest earned on the $90,000 for the year was $3,900.
18.
If x and y are positive integers, what is the ratio of x
to y? (1)
x is equal to the sum of a, b, c, d,
and e. (2)
y is equal to the average of a, b, c, d,
and e.
19.
If both x and y are nonzero numbers, what is the value of x/y? (1)
x2 = y2 (2)
x = 3 20.
If 2 < n < 3, is the hundredths digit of the decimal
fraction part of n equal to 9? (1)
n + 0.001 > 3 (2)
n + 0.0001 < 3
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