Answer the Data Sufficiency questions provided, then click on the Get Answer tab to download the comprehensive answers and explanations. Find out how you might score on these types of questions on the GMAT exam.
Directions: In each of the problems, a question is followed by two statements containing certain data. You are to determine whether the data provided by the statements is sufficient to answer the question.
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Question 1
If x is a prime number, what is the value of x?
(1) x (2) (x – 2) is a multiple of 5.
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) taken 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, requiring more data pertaining to the problem.
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Question 2
If a rectangle has length a and width b, what is its area?
(1) 2a = 15∕b
(2) a = 2b – 2
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) taken 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, requiring more data pertaining to the problem.
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Question 3
What is the ratio of men to women enrolled in a certain class?
(1) The number of women enrolled in the class is 3 fewer than half the number of men enrolled.
(2) The number of women enrolled in the class is 2 fifths of the number of men enrolled.
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) taken 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, requiring more data pertaining to the problem.
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Question 4
A certain car dealership has two locations. Last month, an average (arithmetic mean) of 11 cars per salesperson was sold at location A and an average of 16 cars per salesperson was sold at location B. What was the average number of cars sold per salesperson at this dealership last month?
(1) Last month, the number of salespeople at location A was 3 times the number of salespeople at location B.
(2) Last month, the total number of cars sold at location A was 132, and the total number of cars sold at location B was 64.
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) taken 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, requiring more data pertaining to the problem.
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Question 5
In a certain telephone poll, each of 600 people said they were in favor of, against, or undecided on a certain bill being debated in the legislature.
How many of the people polled were in favor of the bill?
(1) The number of people who were in favor of the bill was 200 greater than the number of people who were against it.
(2) 200 people were undecided, which was twice as many as the number who were against the bill.
