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题库 / OG2017Q-DS-185
Did Insurance Company K have more than $300 million in total net profits last year?
(1) Last year Company K paid out $0.95 in claims for every dollar of premiums collected.
(2) Last year Company K earned a total of $150 million in profits from the investment of accumulated surplus premiums from previous years.
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：
问公司K去年是否有超过3亿美元的净利润。条件（1）和（2）给出了收取保费和支付索赔的利润以及累计盈余溢价投资产生的利润，但不能得知是否有其他收入来源或其他类型的费用。因此，不能计算净利润。
因此，本题答案为（E），两个条件结合起来也不能解题，必须提供新数据。
from GMAT GMAT CLUB Forum
Statement #2: this tells about the "investment of accumulated surplus premiums from previous years." Presumably, this company also sold some new premiums last year. Thus, the total revenue from premiums is unknown
have no way to know the full dollar amount of premiums last year, and even if we did know this, we would know the dollar amount paid out in claims, but we wouldn't know the other expenses that would cut into profit.
Answer = (E)
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