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17 Aug 2016, 01:57
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Difficulty:
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70% (01:05) correct
30%
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wrong
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If x and y are positive integers, then xy + x is
A. Always even
B. Always odd
C. Even whenever x is even
D. Even whenever x + y is odd
E. It cannot be determined from the information given
A. Always even
B. Always odd
C. Even whenever x is even
D. Even whenever x + y is odd
E. It cannot be determined from the information given
17 Aug 2016, 02:32
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Bunuel
If x and y are positive integers, then xy + x is
A. Always even
B. Always odd
C. Even whenever x is even
D. Even whenever x + y is odd
E. It cannot be determined from the information given
A. Always even
B. Always odd
C. Even whenever x is even
D. Even whenever x + y is odd
E. It cannot be determined from the information given
x and y are positive integers, then xy + x..
Let's take even as 2 and odd as 3.
IMO option A is correct answer..
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Anigr16
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17 Aug 2016, 05:06
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msk0657
Bunuel
If x and y are positive integers, then xy + x is
A. Always even
B. Always odd
C. Even whenever x is even
D. Even whenever x + y is odd
E. It cannot be determined from the information given
A. Always even
B. Always odd
C. Even whenever x is even
D. Even whenever x + y is odd
E. It cannot be determined from the information given
x and y are positive integers, then xy + x..
Let's take even as 2 and odd as 3.
IMO option A is correct answer..
If you consider your fourth scenario, that turns out to be odd.
Hence option C should be correct.
