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Positive integer y is 50 percent of... (GMAT Quants)

Positive integer y is 50 percent of 50 percent of positive integer x, and y per cent of x equals 100. What is the value

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In 2009, TechNet had an average net profit of $7.50 per item sold... (GMAT Quants)

In 2009, TechNet had an average net profit of $7.50 per item sold. In 2012, the profit decreased to $6.60 per item sold. W

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