X,81,73, 71,98, 73,64
What is the value of X in the above list of 7 numbers?
1.The average (arithmetic mean) of these 7 numbers is 80.
2.The range of these 7 numbers is 36.
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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 statement 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