x=a$$\sqrt{b}$$, y=c$$\sqrt{d}$$. If a, b, c and d are positive integers, and x and y are not integers. Is xy an integer?
(1) $$\sqrt{ad}$$ is an integer.
(2) $$\sqrt{bc}$$ is an integer.
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AStatement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
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BStatement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
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CBoth statements TOGETHER are sufficient, but NEITHER one ALONE is sufficient.
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DEACH statement ALONE is sufficient.
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EStatements (1) and (2) TOGETHER are NOT sufficient.
显示答案
正确答案: E