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If x is an even integer, which of the following is an odd integer?
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05 Jul 2021, 06:49
05 Jul 2021, 06:49
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Question Stats:
91% (00:27) correct
8% (00:17) wrong based on 12 sessions
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If x is an even integer, which of the following is an odd integer?
(A) 3x + 2
(B) 7x
(C) 8x +5
(D) \(x^2\)
(E) \(x^3\)
(A) 3x + 2
(B) 7x
(C) 8x +5
(D) \(x^2\)
(E) \(x^3\)
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Re: If x is an even integer, which of the following is an odd integer?
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05 Jul 2021, 07:19
05 Jul 2021, 07:19
1
Carcass wrote:
If x is an even integer, which of the following is an odd integer?
(A) 3x + 2
(B) 7x
(C) 8x +5
(D) x^2
(E) x^3
(A) 3x + 2
(B) 7x
(C) 8x +5
(D) x^2
(E) x^3
With questions like this, we can apply RULES related to odds and evens, or we can just PLUG IN an even value for x.
The easiest value to plug in is x = 0
(A) 3(0) + 2 = 2 EVEN - ELIMINATE A
(B) 7(0) = 0 EVEN - ELIMINATE B
(C) 8(0) +5 = 5 ODD. DONE!!!
Answer: C
For "kicks" let's keep going (although, on test day, we would select C and move onto the next question.
(D) 0^2 = 0 EVEN - ELIMINATE D
(E) 0^3 = 0 EVEN - ELIMINATE E
Cheers,
Brent
gmatclubot
Re: If x is an even integer, which of the following is an odd integer? [#permalink]
05 Jul 2021, 07:19
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