Question
Ivan has some money to buy some files. He will have $7 if he buys 7 files. However, he will need $5 more if he wants to buy 11 files. How much money does each file cost?
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Ivan has some money to buy some files. He will have $7 if he buys 7 files. However, he will need $5 more if he wants to buy 11 files. How much money does each file cost?