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题库解析   >   其他 题型   >   241-270
本题由hyman1提供
241-270

In a two-month survey of shoppers, each shopper bought one of two brands of detergent, X or Y, in the first month and again bought one of these brands in the second month. In the survey, 90 percent of the shoppers who bought Brand X in the first month 1 bought Brand X again in the second month, while 60 percent of the shoppers who bought Brand Y in the first month bought Brand Y again in the second month. What percent of the shoppers bought Brand Y in the second month?

( 1) In the first month, 50 percent of the shoppers bought Brand X.
(2) The total number of shoppers surveyed was 5,000.

In a two-month survey of shoppers, each shopper
bought one of two brands of detergent, X or Y, in the
first month and again bought one of these brands
in the second month. In the survey, 90 percent of
the shoppers who bought Brand X in the first month
1 bought Brand X again in the second month, while
60 percent of the shoppers who bought Brand Y in the
first month bought Brand Y again in the second month.
What percent of the shoppers bought Brand Y in the
second month?
( 1) In the first month, 50 percent of the shoppers
bought Brand X.
(2) The total number of shoppers surveyed was
5,000.


    A.Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
    B.Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
    C.BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient.
    D.EACH statement ALONE is sufficient.
    E.Statements (1) and (2) TOGETHER are NOT sufficient.

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答案:
A

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