Question
Diana had some chocolate bars at first. After she gave away 3 chocolate bars to her sister and ate another 6 chocolate bars, she went to buy another 75 chocolate bars. In the end, she had thrice as many chocolate bars as before. How many chocolate bars did iris have at first?
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Diana had some chocolate bars at first. After she gave away 3 chocolate bars to her sister and ate another 6 chocolate bars, she went to buy another 75 chocolate bars. In the end, she had thrice as many chocolate bars as before. How many chocolate bars did iris have at first?