Question
Some pencils and files were packed into grey and black bags. There were 2 less black bags than grey bags. Each grey carton contained 10 pencils and each black carton contained 14 files. Given that there were 12 more files than pencils in total, how much files were there?
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Some pencils and files were packed into grey and black bags. There were 2 less black bags than grey bags. Each grey carton contained 10 pencils and each black carton contained 14 files. Given that there were 12 more files than pencils in total, how much files were there?