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If a is an even integer and b is an odd integer, which of th
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20 Mar 2020, 11:34
20 Mar 2020, 11:34
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If a is an even integer and b is an odd integer, which of the following must be odd?
Indicate all such expressions.
A. a − b
B. a + 2b
C. 3a + b
D. 2a − b
E. a + b
Kudos for the right answer and explanation
Indicate all such expressions.
A. a − b
B. a + 2b
C. 3a + b
D. 2a − b
E. a + b
Kudos for the right answer and explanation
ShowHide Answer
Official Answer
A,C,D,E
Re: If a is an even integer and b is an odd integer, which of th
[#permalink]
20 Mar 2020, 20:58
20 Mar 2020, 20:58
1
The properties that are used here are.
Even + Odd = Odd
Even - Odd = Odd
Odd + Even = Odd
Odd - Even = Odd.
Now, let's look at the options.
Option A: \(a - b = Even - Odd = Odd\)
Option B: \(a + 2b = Even + Even = Even\)
Option C: \(3a + b = Even + Odd = Odd\)
Option D: \(2a - b = Even - Odd = Odd\)
Option E: \(a + b = Even + Odd = Odd\)
OA, A,C,D,E
Even + Odd = Odd
Even - Odd = Odd
Odd + Even = Odd
Odd - Even = Odd.
Now, let's look at the options.
Option A: \(a - b = Even - Odd = Odd\)
Option B: \(a + 2b = Even + Even = Even\)
Option C: \(3a + b = Even + Odd = Odd\)
Option D: \(2a - b = Even - Odd = Odd\)
Option E: \(a + b = Even + Odd = Odd\)
OA, A,C,D,E
Carcass wrote:
If a is an even integer and b is an odd integer, which of the following must be odd?
Indicate all such expressions.
A. a − b
B. a + 2b
C. 3a + b
D. 2a − b
E. a + b
Kudos for the right answer and explanation
Indicate all such expressions.
A. a − b
B. a + 2b
C. 3a + b
D. 2a − b
E. a + b
Kudos for the right answer and explanation
Re: If a is an even integer and b is an odd integer, which of th
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16 Sep 2024, 21:27
16 Sep 2024, 21:27
Hello from the GRE Prep Club BumpBot!
Thanks to another GRE Prep Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).
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Thanks to another GRE Prep Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).
Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
