Question
Some notebooks and files were packed into pink and white packets. There were 12 less white packets than pink packets. Each pink carton contained 10 notebooks and each white carton contained 15 files. Given that there were 15 more files than notebooks in total, how much files were there?
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Some notebooks and files were packed into pink and white packets. There were 12 less white packets than pink packets. Each pink carton contained 10 notebooks and each white carton contained 15 files. Given that there were 15 more files than notebooks in total, how much files were there?