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Home > Self-Study Quizzes > Quiz 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.  1.  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    2.  Data Sufficiency : Is y = 3? (1) (y - 3)(x - 4) = 0 (2) (x - 4) = 0 A) Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient to answer the question asked. B) Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient to answer the question asked. C) BOTH statements (1) and (2) TOGETHER are sufficient to answer the question asked, but NEITHER statement ALONE is sufficient to answer the question asked. D) EACH statement ALONE is sufficient to answer the question asked. E) Statements (1) and (2) TOGETHER are NOT sufficient to answer the question asked, and additional data specific to the problem are needed.    3.  If m, s are the average and standard deviation of integers a, b, c, and d, is s > 0? (1)    m > a (2)    a + b + c + d = 0 A) Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient to answer the question asked. B) Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient to answer the question asked. C) BOTH statements (1) and (2) TOGETHER are sufficient to answer the question asked, but NEITHER statement ALONE is sufficient to answer the question asked. D) EACH statement ALONE is sufficient to answer the question asked. E) Statements (1) and (2) TOGETHER are NOT sufficient to answer the question asked, and additional data specific to the problem are needed.    4.  A lady grows cabbages in her garden that is in the shape of a square. Each cabbage takes 1 square feet of area in her garden. This year, she has increased her output by 211 cabbages as compared to last year. The shape of the area used for growing the cabbages has remained a square in both these years. How many cabbages did she produce this year? A) 11236 B) 11025 C) 14400 D) 12696 E) Cannot be determined    5.  A wheel of a car of radius 21 cms is rotating at 600 RPM. What is the speed of the car in km/hr? A) 79.2 km/hr B) 47.52 km/hr C) 7.92 km/hr D) 39.6 km/hr E) 3.96 km/hr

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