56. 6461-!-item-!-187;#058&004810 To celebrate a colleague's retirement, the T coworkers in an office agreed to share equally the cost of a catered lunch. If the lunch costs a total of x dollars and S of the coworkers fail to pay their share, which of the following represents the additional amount, in dollars, that each of the remaining coworkers would have to contribute so that the cost of the lunch is completely paid? 1.x/T 2.x/(T-S) 3.Sx/(T-S) 4.Sx/T(T-S) 5.x(T-S)/T 正确答案是4 为什麽不是3 题目问的应该是"剩下的人要多付多少"没错吧 还是我误会题目的意思了 57. 6510-!-item-!-187;#058&004845 Amount charged | Percent Bonus ----------------------------------- $0.01 to $1000.00| 0.5 $1001.00 to $3000.00| 1.0 $3001.00 to $6000.00| 1.5 $6001.00 to $10000.00| 2.0 At the end of each year, a certain credit card company pays a bonus to each of its credit card holders based on the amount, up to $10,000, that the cardholder charged throughout the year. A 0.5 percent bonus is paid on the first $1,000 charged, a 1.0 percent bonus is paid on the next $2,000 charged and so on, as indicated in the table above. What is the maximum annual bonus, in dollars? (A) $100 (B) $150 (C) $200 (D) $250 (E) $500 答案是B 不是应该10000*2.0% = 200吗 --

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