Question
Mr Seow bought 15 boxes of files at the price of $12 per box. He gave 60 files to his pupils and sold the rest of the files at 90 cents each. If he made a profit of $36, find the number of files in each box.
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Mr Seow bought 15 boxes of files at the price of $12 per box. He gave 60 files to his pupils and sold the rest of the files at 90 cents each. If he made a profit of $36, find the number of files in each box.