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题目内容
If the terms of a sequence are$$t_1, t_2, t_3, . . . , t_n$$, what is the value of n ?

(1) The sum of the n terms is 3,124.

(2) The average (arithmetic mean) of the n terms is 4.
  • AStatement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
  • BStatement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
  • CBOTH statement TOGETHER are sufficient, but NEITHER statement ALONE is sufficien
  • DEACH statement ALONE is sufficient.
  • EStatements (1) and (2) TOGETHER are NOT sufficient.
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正确答案: C
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题目基本信息

  • 所属科目:数学DS
  • 题目来源1:PREP07 Test 1-79
  • 正确率: 0%
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