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题库 / OG2017Q-DS-254
In Year X, 8.7 percent of the men in the labor force were unemployed in June compared with 8.4 percent in May. If the number of men in the labor force was the same for both months, how many men were unemployed in June of that year?
(1) In May of Year X, the number of unemployed men in the labor force was 3.36 million.
(2) In Year X, 120,000 more men in the labor force were unemployed in June than in May.
Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
EACH statement ALONE is sufficient.
Statements (1) and (2) TOGETHER are NOT sufficient.
题目分析：
设五月和六月的劳动人口为x
（1） 五月失业人员为336万，占劳动人口的8.4%，因此劳动人口x=336/0.084=4000万。所以六月份失业人口为4000*8.7%=348万。题目得解。
（2） 六月份失业人数比五月份多12万，有0.087x-0.084x=12，解得x=4000万。所以六月份失业人口为4000*8.7%=348万。题目得解。
因此，本题答案为（D），任何一个条件说明均能解题。