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If x is a positive integer and y is a negative integer, which of the f
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07 Jan 2023, 01:44
07 Jan 2023, 01:44
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73% (00:41) correct
26% (00:33) wrong based on 15 sessions
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If x is a positive integer and y is a negative integer, which of the following cannot be negative?
(A) x + y
(B) 2x + y
(C) x + 2y
(D) 2y
(E) 2x − y
(A) x + y
(B) 2x + y
(C) x + 2y
(D) 2y
(E) 2x − y
GRE Prep Club Team Member
Joined: 20 Feb 2017
Posts: 2508
Given Kudos: 1051
GPA: 3.39
Re: If x is a positive integer and y is a negative integer, which of the f
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14 Jan 2023, 11:48
14 Jan 2023, 11:48
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Re: If x is a positive integer and y is a negative integer, which of the f
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05 Feb 2023, 10:16
05 Feb 2023, 10:16
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Suppose y is a large negative number and x is a small positive number. In that case, x + y, 2x + y, and x + 2y would all yield a negative number. Because y is negative, 2y will be negative. In choice(E), 2x will be positive, y will be negative, and a positive minus a negative will always yield a positive.
Suppose y is a large negative number and x is a small positive number. In that case, x + y, 2x + y, and x + 2y would all yield a negative number. Because y is negative, 2y will be negative. In choice(E), 2x will be positive, y will be negative, and a positive minus a negative will always yield a positive.
