UPSC 2015 CDS II Math Paper
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Question : 22 of 100
Marks:
+1,
-0
Let x and y be positive integers such that x is prime and y is composite.Which of the following statements are correct ?
1. (y-x) can be an even integer.
2. xy can be an even integer.
3. 0.5(x+y) can be an even integer.
Select the correct answer using the code given below:
1. (y-x) can be an even integer.
2. xy can be an even integer.
3. 0.5(x+y) can be an even integer.
Select the correct answer using the code given below:
[2015 CDS-II]
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