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题库解析   >   连续数题型   >  
    本题由lindy提供
2098次学习

Last year the range of the annual salaries of the

100 employees at Company X was $30,000. If the annual salary of each of the 100 employees this year is 10 percent greater than it was last year, what is the range of the annual salaries of the 100 employees this year?


     

    (A) $27,000

    (B) $30,000

    (C) $33,000

    (D) $36,000

    (E) $63,000


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答案:
C

Last year th

e range of the annual salaries of the 100 employees at Company X=30,000(假设最大annual salaries=50,000,最小annual salaries=20,000)
又今年比去年annual salary涨10% 表示the range of the annual salaries of the 100 employees this year=50,000x(1.1)-20,000x(1.1)=33,000

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