Download e-book for kindle: 501 quantitative comparison questions by LearningExpress Editors

By LearningExpress Editors

ISBN-10: 1576854345

ISBN-13: 9781576854341

501 Quantitative comparability Questions is helping organize scholars for key educational flair tests-including the PSAT/NMSQT, the SAT, and the GRE-which function a quantitative comparability part in the math part of the examination. 501 Quantitative comparability Questions is designed to assist scholars organize for this really good math part, mastery of that is crucial for reputation to fascinating faculties and jobs. by means of finishing the workouts during this booklet, scholars can raise their math wisdom and achieve familiarity with really expert questions had to ranking excessive. The booklet good points entire solutions, each one with an entire clarification

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Any positive number is greater than any negative number. 40 2 3 2 77. a. 40% is equivalent to ᎏ 10ᎏ 0 = ᎏ5ᎏ; ᎏ5ᎏ of 80 is greater than ᎏ5ᎏ of 80. 78. a. Both x and y are negative. Therefore, the sum of x and y is negative (quantity B). The absolute value of x and y are both positive, so their sum is positive (quantity A). Any positive number is greater than any negative number. 79. d. The relationship cannot be determined. If x = −2, then quantity A is 7(3(−2) + 1) = 7(−6 + 1) = 7(−5) = −35 and quantity B is 12(3(−2) + 1) = 12(−6 + 1) = 12(−5) = −60.

Since x is (5͙3x ෆ)2 = 25(3x) = 75x; (3͙5x positive, 75x is always greater than 45x. 50. a. 1. In this case, quantity A is greater. Try a number greater than 1 such as 20. 4(20) = 80 and ᎏ25ᎏ0 = 4. Whenever a positive number is multiplied by 4, it will be greater than if that positive number was divided by 5. 51. b. Subtract 2x from both quantities. Quantity A is now x − 5 and quantity B is now 0. Add 5 to both quantities. A is now x and B is now 5. x is defined as between −1 and 1. Therefore, it is less than 5.

Combine the terms of quantity A; ͙10 ෆ + ͙10 ෆ = 2͙10 ෆ. To get rid of the square root, square both quantities (A and B); ෆ)2 = 4(10) = 40 and 72 = 49. 40 < 49. (2͙10 17 501 Quantitative Comparison Questions 66. a. Notice that quantity A starts earlier and ends later. Therefore, it is a longer period of time. You do not need to do the subtraction. 67. c. Square both quantities to get rid of the square roots; (͙63 ෆ)2 = ෆ)2 = 9(7) = 63. The two quantities are the same. 63 and (3͙7 68. c. Use the distributive property to multiply quantity B out.

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501 quantitative comparison questions by LearningExpress Editors

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