GMAT: Quantitative Problems II

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oLahav’s Tests

A test by Oren Lahav.

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Question

Here's a quick GMAT Quantitative Section Test. You have a max of 20 minutes to answer these 10 questions. Good luck!

Alex wants to get to Eleanor. Wihout retracting his steps, how many paths can he take?

Answers

Correct	Answer Text
	27
	33
	12
	9
	24

Question

If ab isn't 0, is a/b positive?
1. a+b=0
2. (a ^ 2)= (b ^ 2)

Answers

Correct	Answer Text
	A. Statement 1 ALONE is sufficient, but statement 2 alone is not sufficient
	B. Statement 2 ALONE is sufficient, but statement 1 alone is not sufficient.
	C. BOTH statements TOGETHER are sufficient, but NEITHER statement alone is sufficient.
	D. EACH statement ALONE is sufficient
	E. Statements 1 and 2 TOGETHER are NOT sufficient

Question

How many different positive integers are factors of 1089?

Answers

Correct	Answer Text
	11
	7
	4
	9
	6

Question

Is x less than y?
1. x+y < 0
2. y is greater then or equal to 4

Answers

Correct	Answer Text
	A. Statement 1 ALONE is sufficient, but statement 2 alone is not sufficient
	B. Statement 2 ALONE is sufficient, but statement 1 alone is not sufficient.
	C. BOTH statements TOGETHER are sufficient, but NEITHER statement alone is sufficient.
	D. EACH statement ALONE is sufficient
	E. Statements 1 and 2 TOGETHER are NOT sufficient

Question

I have a box with dimensions 10x10x5, and a stick. What's the maximum length my stick can be if I want to fit it in the box?

Answers

Correct	Answer Text
	15
	25
	20
	10(sqrt3)
	10(sqrtt2)

Question

If x(2x-1) and (x-0.5)(2x+3) both equal 0, what's x?

Answers

Correct	Answer Text
	0
	-1/2
	3/2
	-3
	1/2

Question

Does (abc) ^ 2 = 1?
1. ab= -1
2. bc= -1

Answers

Correct	Answer Text
	A. Statement 1 ALONE is sufficient, but statement 2 alone is not sufficient
	B. Statement 2 ALONE is sufficient, but statement 1 alone is not sufficient.
	C. BOTH statements TOGETHER are sufficient, but NEITHER statement alone is sufficient.
	D. EACH statement ALONE is sufficient
	E. Statements 1 and 2 TOGETHER are NOT sufficient

Question

In the following picture, ABCD is a trapezoid such that AD is parallel to BC, and perpendicular to AE, with AD=45, AE=60 and BE=15. What's the area of trapezoid ABCD?
1. BC=80< br/>2. CD=20(sqrt10)

Answers

Correct	Answer Text
	A. Statement 1 ALONE is sufficient, but statement 2 alone is not sufficient
	B. Statement 2 ALONE is sufficient, but statement 1 alone is not sufficient.
	C. BOTH statements TOGETHER are sufficient, but NEITHER statement alone is sufficient.
	D. EACH statement ALONE is sufficient
	E. Statements 1 and 2 TOGETHER are NOT sufficient

Question

If A represents the positive odd integers less than 50, and B represents the perfect squares less than 50, how many elements are in both A and B?

Answers

Correct	Answer Text
	0
	5
	2
	7
	4

Question

If x+y=M and x-y=N, 2xy is what?

Answers

Correct	Answer Text
	(M - N)/2
	((N ^ 2) - (M ^ 2))/2
	((M ^ 2) - (N ^ 2))/2
	((N ^ 2) + (M ^ 2))/2
	MN/2

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