1996 AMC 8 第 23 题
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23.
一家公司经理原计划从公司基金中给每位员工发五十美元奖金,但基金比所需金额少五美元。于是经理改为给每位员工发四十五美元奖金,并在公司基金中留下九十五美元。发放任何奖金之前,公司基金中有多少钱?
The manager of a company planned to distribute a $50 bonus to each employee from the company fund, but the fund contained $5 less than what was needed. Instead the manager gave each employee a $45 bonus and kept the remaining $95 in the company fund. The amount of money in the company fund before any bonuses were paid was
$945
$950
$955
$990
$995
答案:E
解答:
设员工人数为 。基金数为 (比每人 美元少五美元),也等于 。
令 ,得 ,所以 。基金数为 美元。
所以正确答案是 E。
Let be the number of employees. The fund is (five dollars short of each) and also .
Setting gives , so . The fund is .
Thus, the correct answer is E .
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