【GMAT考满分数据洞察DS题库】In the sequence of positive numbers $$x_1,x_2,x_3$_真题_答案

题目内容

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In the sequence of positive numbers

$x_1,x_2,x_3$ ,. . ., what is the value of

$x_1$ ?

(1)

$x_l =\frac1 2 {x_{l-1}}$ for all integers

$l > 1$

(2)

$x_5 = {x_4\over(x_4+1)}$

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.

正确答案: C

正确率： 78%

难度：

选择材料题号

PREP07 Test 1

SET 1

题目来源

题目来源1:PREP07 Test 1

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