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GMAT Math practice - (5/36 questions - random)

GMAT practice questions. Once you complete the quiz you will see your score and explanation of the correct answer.

If the ratio of the sum of the first 6 terms of a G.P. to the sum of the first 3 terms of the G.P. is 9, what is the common ratio of the G.P?

	A) 3
	B) 1/3
	C) 2
	D) 9
	E) 1/9

What is the radius of the incircle of the triangle whose sides measure 5, 12 and 13 units?

	A) 2 units
	B) 12 units
	C) 6.5 units
	D) 6 units
	E) 7.5 units

What is the equation of a circle of radius 6 units centered at (3, 2)?

	A) x2 + y2 + 6x – 4y = 23
	B) x2 + y2 - 6x + 4y = 23
	C) x2 + y2 + 6x + 4y = 23
	D) x2 + y2 - 6x – 4y = - 23
	E) x2 + y2 - 6x – 4y = 23

If the sum of the interior angles of a regular polygon measures up to 1440 degrees, how many sides does the polygon have?

	A) 10 sides
	B) 8 sides
	C) 12 sides
	D) 9 sides
	E) None of these

For what values of 'k' will the pair of equations 3x + 4y = 12 and kx + 12y = 30 not have a unique solution?

	A) 12
	B) 9
	C) 3
	D) 7.5
	E) 2.5


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