Mathematics
Mathematics, 12.03.2020 23:02, Doremon

A shop sells pens and files only in packs. A pack of 3 pens cost $12. A pack of 2 files cost $10. A student wants to buy an equal number of pens and files. What is the least amount that the student must pay?

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A shop sells pens and files only in packs. A pack of 3 pens cost $12. A pack of 2 files cost $10. A...

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