A and B are 5miles apart, C and D are 7miles apart. The average speed of a car passing through AB is X miles/h, and the average speed of passing through CD is Y miles/h. Does it take more hours for the car to pass through AB than to pass through CD?
(1)y = x+20
(2)y<2x
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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.
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正确答案: E