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1. If x is an odd integer and y an even integer which of the following statements is (are) alwayes true? 1. x+y is odd 2. xy is odd 3. 2x+y is even
- A. 1 only
- B. 1 only
- C. 1 only
- D. 1 only
Answer: Option D
Explanation:
We know,
odd+even=odd [i is correct]
odd×even=even [ii is incorrect]
2×(odd)+even=even [iii is correct]
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