Data Sufficiency - GMAT - Test

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Data Sufficiency - GMAT

A test by Ravinder Kumar Mittal.

Test Questions

Question

Is positive integer a even? (1) a is a multiple of 4. (2) a is a factor of 4^4 x 2^2.

Answers

Correct	Answer Text
	BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
	Statement (1) ALONE is sufficient, but statement (2) ALONE is not sufficient.
	EACH statement ALONE is sufficient.
	Statements (1) and (2) TOGETHER are NOT sufficient.
	Statement (2) ALONE is sufficient, but statement (1) ALONE is not sufficient.

Question

Prospero is 15 years older than his brother Antonio. How old is Prospero? (1) Twenty years ago, Prospero's age was twice that of Antonio. (2) Ten years later, Antonio's age will be ¾ that of Prospero.

Answers

Correct	Answer Text
	Statement (1) ALONE is sufficient, but statement (2) ALONE is not sufficient.
	Statements (1) and (2) TOGETHER are NOT sufficient.
	Statement (2) ALONE is sufficient, but statement (1) ALONE is not sufficient.
	BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
	EACH statement ALONE is sufficient.

Question

The operator & represents which one of the following operations: addition, subtraction, multiplication or division? (1) For all x, 3&x = x&3 (2) For all x, 2x&3x = 6x2

Answers

Correct	Answer Text
	Statement (1) ALONE is sufficient, but statement (2) ALONE is not sufficient.
	Statements (1) and (2) TOGETHER are NOT sufficient.
	BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
	EACH statement ALONE is sufficient.
	Statement (2) ALONE is sufficient, but statement (1) ALONE is not sufficient.

Question

What is the average of three consecutive odd positive integers? (1) The product of the smallest integer and the middle integer is 783. (2) The sum of the three consecutive odd integers is 87.

Answers

Correct	Answer Text
	Statements (1) and (2) TOGETHER are NOT sufficient.
	BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
	EACH statement ALONE is sufficient.
	Statement (2) ALONE is sufficient, but statement (1) ALONE is not sufficient.
	Statement (1) ALONE is sufficient, but statement (2) ALONE is not sufficient.

Question

What is the value of odd integer s? (1) 1 < s < 10 . (2) √s is also an odd integer.

Answers

Correct	Answer Text
	BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
	Statement (2) ALONE is sufficient, but statement (1) ALONE is not sufficient.
	Statements (1) and (2) TOGETHER are NOT sufficient.
	EACH statement ALONE is sufficient.
	Statement (1) ALONE is sufficient, but statement (2) ALONE is not sufficient.