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If X is an odd integer and Y is an even integer, which of the following statements is (are) always true? 1. X+Y is odd 2. XY is odd 3. X+2y is even

If X is an odd integer and Y is an even integer, which of the following statements is (are) always true? 1. X+Y is odd 2. XY is odd 3. X+2y is even Correct Answer 1 only

1. Addition of odd and even integers yields odd intgers. Example: 4 + 3 = 7. So, statement 1 is true.   2. Multiplication of odd and even integers yields even integers. Example: 4x3 = 12. So, statement 2 is false.   3. 2y is odd and x is odd. So, x + 2y is odd. Therefore, statement 3 is false. 

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If x is an odd integer and y is an even integer, which of the following statements is (are) always true? 1. X+Y is odd. 2. XY is odd. 3. 2X+Y is even.
If X is an odd integer and Y is an even integer, which of the following statements is (are) always true? 1. X+Y is odd 2. XY is odd 3. 2X+Y is even
x3+ x2y,x2y+ xy2 এর লসাগু কত?
x3+x2y, x2y+ xy2 এর ল, সা, গু কোনটি?
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If x + 1/y = 2, then what is the value of {(x2y + 4xy + x)(2 – x)}/(2xy – x2y)?