20 people donated some money. Each person can only donate $9, $10, $11. What's the average donation of these 20 people?
1: The number of people who donated $9 is equal to the number who donated $11.
2: The number of people who donated $9 is less than the number who donated $10.
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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: A