【GMAT考满分数据洞察DS题库】John is 10 years younger than his cousin Mark. _真题_答案

题目内容

John is 10 years younger than his cousin Mark. In 20 years, how old will John be?

(1) Five years ago, Mark was twice as old as John.

(2) Mark's age in five years will be twice John's age right now.

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 statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
DEACH statement ALONE is sufficient.
EStatements (1) and (2) TOGETHER are not sufficient.

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正确答案: D

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