Suppose n children are going to sit, in any order, on a row of n chairs. What is the value of n?
Statement #1: If one child leaves, and one chair is removed from the row, there would be 4320 fewer arrangements of the remaining children.
Statement #2: In this row, there are 5040 possible arrangements of the n children.
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AStatement 1 ALONE is sufficient to answer the question, but statement 2 alone is NOT sufficient.
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BStatement 2 ALONE is sufficient to answer the question, but statement 1 alone is NOT sufficient.
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CBOTH statements 1 and 2 TOGETHER are sufficient to answer the question, but NEITHER statement ALONE is sufficient.
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DEach statement ALONE is sufficient to answer the question.
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EStatement 1 and 2 TOGETHER are NOT sufficient to answer the question.
显示答案
正确答案: D