【GMAT考满分数学PS题库】In the sequence $$x_0$$, $$x_1$$, $$x_2$$, ... , $_真题_答案

题目内容

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In the sequence

$x_0$ ,

$x_1$ ,

$x_2$ , ... ,

$x_n$ , each term from

$x_1$ to

$x_k$ is 3 greater than the previous term, and each term from

$x_k+1$ to

$x_n$ is 3 less than the previous term, where n and k are positive integers and k < n. If

$x_0 = x_{n} = 0$ and if

$x_{k} = 15$ , what is the value of n?

正确答案: D

正确率： 87%

难度：

选择材料题号

OG19-数学分册

SET 1

题目来源

题目来源1:OG19-数学分册

GMAT 考满分题库