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标题: [求助]几道题目,简单，可是糊涂呀 [打印本页]

作者: lotusfair 时间: 2007-8-28 22:37
标题: [求助]几道题目,简单，可是糊涂呀

1\ If 10⁵⁰ – 74 is written as an integer in base 10 notation, what is the sum of the digits in that integer?

A. 424

B. 433

C. 440

D. 449

E. 467

作者: lotusfair 时间: 2007-8-28 22:38

2\\ A construction company was paid a total of $500,000 for a construction project. The company’s only costs for the project were for labor and materials. Was the company’s profit for the project greater than $150,000?

(1) The company’s total cost was three times its cost for materials.

(2) The company’s profit was greater than its cost for labor.

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

作者: lotusfair 时间: 2007-8-29 15:03
帮帮忙呀各位,我实在想不明白了

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