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Let m be an odd integer and n an even integer. Which of the following
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18 Nov 2021, 04:01
18 Nov 2021, 04:01
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Let m be an odd integer and n an even integer. Which of the following must be even?
(A) \( nm^2\)
(B) \( n + m\)
(C) \( 3n – 2m\)
(D) \( n – m\)
(E) \( nm\)
GRE Tips and Tricks - UPDATED 11/15/2021
GRE Math Essentials for a TOP Quant Score - Q170!!! (2021)
GRE Geometry Formulas for a Q170
(A) \( nm^2\)
(B) \( n + m\)
(C) \( 3n – 2m\)
(D) \( n – m\)
(E) \( nm\)
GRE Tips and Tricks - UPDATED 11/15/2021
GRE Math Essentials for a TOP Quant Score - Q170!!! (2021)
GRE Geometry Formulas for a Q170
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Re: Let m be an odd integer and n an even integer. Which of the following
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18 Nov 2021, 06:35
18 Nov 2021, 06:35
Carcass wrote:
Let m be an odd integer and n an even integer. Which of the following must be even?
(A) \( nm^2\)
(B) \( n + m\)
(C) \( 3n – 2m\)
(D) \( n – m\)
(E) \( nm\)
GRE Tips and Tricks - UPDATED 11/15/2021
GRE Math Essentials for a TOP Quant Score - Q170!!! (2021)
GRE Geometry Formulas for a Q170
(A) \( nm^2\)
(B) \( n + m\)
(C) \( 3n – 2m\)
(D) \( n – m\)
(E) \( nm\)
GRE Tips and Tricks - UPDATED 11/15/2021
GRE Math Essentials for a TOP Quant Score - Q170!!! (2021)
GRE Geometry Formulas for a Q170
The simplest approach to this kind of question is to plug in an odd number for \(m\) and an even number for \(n\).
So let's plug in \(m = 1\) and \(n = 0\) (since these values make our calculations easiest)
We get:
(A) \( (0)(1^2) = 0\) EVEN. So, choice A is correct.
(B) \( 0 + 1=1\) ODD. Eliminate choice B
(C) \( 3(0) – 2(1)=-2\) EVEN. So, choice C is correct.
(D) \( 0 – 1=-1\) ODD. Eliminate choice D
(E) \( (0)(1)=0\) EVEN. So, choice E is correct.
Answer: A, C and E
gmatclubot
Re: Let m be an odd integer and n an even integer. Which of the following [#permalink]
18 Nov 2021, 06:35
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