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

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If the length of a rectangle is increased by 20% and the width is decreased by 20%, the area is :

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In a group of people solicited by a charity, 30% contributed Tk. 2400 each, 45% contributed Tk. 1200 each, and the rest contributed Tk. 120 each. If the charity received a total of Tk. 18,000 form the people who contributed Tk. 120.00, how much was contributed by the entire group?

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The width of a rectangular field is 1/3 as long as its length. What is the area of the field if the length of the field is 120 yards?

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