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CAT 2003 | Question: 2-57

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Let $x$ and $y$ be positive integers such that $x$ is prime and $y$ is composite. Then,

  1. $y – x$ cannot be an even integer
  2. $xy$ cannot be an even integer.
  3. $\frac{x+y}{x}$ cannot be an even integer
  4. None of these. 

1 Answer

Best answer
1 1 vote
A) possible. 12-2 is even integer

B) possible. 3⨉4 is even integer

C)possible (3+9)/3 is even integer

So, Ans D)
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