In the sequence w, x, y, 30, adding any one of the first three terms to the term immediately following it yields w/2. What is the value of w ? _出国考试答疑器_GMAT_试题

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题目：

In the sequence w, x, y, 30, adding any one of the first three terms to the term immediately following it yields w/2. What is the value of w ?

选项:

A、–60

B、–30

C、0

D、5

E、25

答案:

A

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