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A bank offers two types of reward programs for its credit card customers, where a certain percent of the amount of each purchase made using the credit card is paid back to the customer. The first program has no annual fee and pays back 1 percent of the amount of each purchase. The second program has an annual fee of $200 and pays back 1.6 percent of the amount of each travel purchase and 1.1 percent of the amount of each of the other purchases. A customer's annual reward is equal to the total amount paid back to thecustomer annually minus the annual fee. If the amount of all purchases made by a customer using the credit card during a year is $50,000, what is the amount of travel purchases for which the customer's annual reward under the first program will be equal to the customer' s annual reward under the second program?
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2.5.7 单利问题
2.5.7 单利问题
以上解析由 考满分老师提供。
