If m is an integer, is m odd?
(1) m/2 is not an even integer.
(2) m - 3 is an even integer.
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is m odd?
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sanju09
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killer1387
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IMO bsanju09 wrote:If m is an integer, is m odd?
(1) m/2 is not an even integer.
(2) m - 3 is an even integer.
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sam2304
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1.m/2 is not an even integer
1/2 = 0.5 => m is odd
6/2 = 3 => m is even
2. m-3 = even
m = even + 3 => odd
IMO B.
1/2 = 0.5 => m is odd
6/2 = 3 => m is even
2. m-3 = even
m = even + 3 => odd
IMO B.
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Anurag@Gurome
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(1) m/2 is not an even integer.sanju09 wrote:If m is an integer, is m odd?
(1) m/2 is not an even integer.
(2) m - 3 is an even integer.
If m = 10, then m/2 = 5, an odd integer. Here m is an even integer.
If m = 5, then m/2 = 5/2, a fraction. Here m is an odd integer.
No definite answer; NOT sufficient.
(2) m - 3 is an even integer.
3 is an odd integer, so it means m - odd = even or m = odd + even = odd; SUFFICIENT.
The correct answer is B.
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ranjeet75
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stat 1): m/2 = odd integer
so, m = 2 * odd integer
so, m = even integer
so, answer to the question "is m odd" is NO.
Hence Sufficient.
(In question stem it is said that m is an integer so m can't be a fraction)
In my view answer should be D
Please tell my mistake if I am wrong.
[quote](1) m/2 is not an even integer.
If m = 10, then m/2 = 5, an odd integer. Here m is an even integer.
If m = 5, then m/2 = 5/2, a fraction. Here m is an odd integer.
No definite answer; NOT sufficient.
(2) m - 3 is an even integer.
3 is an odd integer, so it means m - odd = even or m = odd + even = odd; SUFFICIENT.
The correct answer is B.[/quote][/quote]
so, m = 2 * odd integer
so, m = even integer
so, answer to the question "is m odd" is NO.
Hence Sufficient.
(In question stem it is said that m is an integer so m can't be a fraction)
In my view answer should be D
Please tell my mistake if I am wrong.
[quote](1) m/2 is not an even integer.
If m = 10, then m/2 = 5, an odd integer. Here m is an even integer.
If m = 5, then m/2 = 5/2, a fraction. Here m is an odd integer.
No definite answer; NOT sufficient.
(2) m - 3 is an even integer.
3 is an odd integer, so it means m - odd = even or m = odd + even = odd; SUFFICIENT.
The correct answer is B.[/quote][/quote]
Ok, so M is an integer. But M/2 isn't necessarily an integer.ranjeet75 wrote:stat 1): m/2 = odd integer
so, m = 2 * odd integer
so, m = even integer
so, answer to the question "is m odd" is NO.
Hence Sufficient.
(In question stem it is said that m is an integer so m can't be a fraction)
In my view answer should be D
Please tell my mistake if I am wrong.
Here's the wording:
(1) m/2 is not an even integer.
"not an even integer" means that it could be an odd integer or a fraction.
