Each questions is followed by two statements. Decide whether the data in the statements are sufficient to answer the question. Select your answer according to whether: Is the product of x and y positive? (1) \(x - y = 1/3\) (2) \((x+y)/(x-y) >1\)
A. Statement (1) alone is sufficient, but statement (2) alone is not sufficient to answer the question.
B. Statement (2) alone is sufficient, but statement (1) alone is not sufficient to answer the question.
C. Both statements taken together are sufficient to answer the questions, but neither statement alone is sufficient.
D. Each statement alone is sufficient.
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Explanation: Statement 1 alone gives an idea about the difference between \(x\) and \(y\), not whether the numbers are positive or negative. From statement 2 alone, \(\frac{x+y}{x-y}>1\). Or, \(x+y>x-y\), or \(y>0\). But this does not prove whether \(x\) is positive or negative. Taking both statements together: \(\frac{x+y}{x-y}>1\). Or, \(x+y>1/3\). Here, \(y\) is positive. This means that \(x\) might be a negative number such that, \(x+y>1/3\). So, both statements together are not sufficient. Correct Answer (E)
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