Question
Marion bought some pens. She gave 13 of the pens to her cousin and sold 34 of the remaining pens. After that, she bought another 50 pens and had the same number of pens that she bought at first. How many pens did Marion buy at first?
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Marion bought some pens. She gave 13 of the pens to her cousin and sold 34 of the remaining pens. After that, she bought another 50 pens and had the same number of pens that she bought at first. How many pens did Marion buy at first?