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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.

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

Robin earns 30% more than Erica. Charles earns 60% more than Erica. How much % is the wages earned by Charles more than that earned by Robin?

	A) 23%
	B) 18.75%
	C) 30%
	D) 50%
	E) 100%

The average of 5 quantities is 6. The average of 3 of them is 8. What is the average of the remaining two numbers?

	A) 4
	B) 5
	C) 3
	D) 3.5
	E) 0.5

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

If both 11² and 3³ are factors of the number a * 4³ * 6² * 13¹¹, then what is the smallest possible value of a?

	A) 121
	B) 3267
	C) 363
	D) 33
	E) None of the above


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