One-time payment
The price of a refrigerator is 7500 CZK for a one-time payment. If the customer chooses to purchase in installments, he will pay 800 CZK every month for 1 year. Determine by how much percent the customer will pay more for the refrigerator when purchasing in installments than when paying in a one-time payment.
Correct answer:

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arithmeticbasic functionsUnits of physical quantitiesGrade of the word problem
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