Math Workout for the GRE by Princeton Review

Math Workout for the GRE by Princeton Review

Author:Princeton Review [Review, The Princeton]
Language: eng
Format: epub
ISBN: 978-0-8041-2463-8
Publisher: Random House Children's Books
Published: 2014-02-03T16:00:00+00:00

21. A

Plug In a few different rounds of numbers. The question states j − 6 = 4(c − 6). If you choose c = 7, then j = 10. In that case, 7 > 6.5 and Quantity A is greater, so you can eliminate choices (B) and (C). To decide between answers (A) and (D), choose a couple of very different numbers to plug in, but recall that negative numbers and zeros don’t work for ages. Let c = 66 to check the high end of the range. For c = 66, j = 246, and 66 > 65.5, and Quantity A is still 0.5 greater. Choose one more number to be sure. If c = 10, j = 22. Once again Quantity A is 0.5 greater than Quantity B because 10 > 9.5, so you can confidently select choice (A).


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