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17 Jul 2017, 11:47
Kudos
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C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
87% (00:49) correct
13%
(00:44)
wrong
based on 142
sessions
History
Date
Time
Result
Not Attempted Yet
If \(x\) is an even integer and \(y\) is an odd integer, then which of the following CANNOT be an even integer?
(A) \(x + 2y\)
(B) \(2(x + y)\)
(C) \(2x + y\)
(D) \(\frac{x}{y}\)
(E) \(xy\)
(A) \(x + 2y\)
(B) \(2(x + y)\)
(C) \(2x + y\)
(D) \(\frac{x}{y}\)
(E) \(xy\)
17 Jul 2017, 11:55
Kudos
Bookmarks
Gnpth
Solution -
(A) \(x + 2y\) ----- \(Even + Even = Even\)
(B) \(2(x + y)\) ------- \(Even*any number = Even\)
(C) \(2x + y\) ------ \(Even + Odd = Odd\). Correct Answer
(D) \(\frac{x}{y}\) ----- May or may not be an even integer. For eg. \(6/3 = 2 = Even\) but \(4/3\) is not an integer
(E) \(xy\) ------\(Even*Odd = Even\)
