Question
A bookstore sold 1 file for $7. For every 5 files sold, an additional file would be given free. If Mrs Chan spent $105 on the files, how many files did she receive in total?
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A bookstore sold 1 file for $7. For every 5 files sold, an additional file would be given free. If Mrs Chan spent $105 on the files, how many files did she receive in total?