Question
Marion had 36 more pens than Winnie at first. Winnie gave 15 of her pens to Marion. Marion now has 4 times as many pens as Winnie. How many pens did Winnie have at first?
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Marion had 36 more pens than Winnie at first. Winnie gave 15 of her pens to Marion. Marion now has 4 times as many pens as Winnie. How many pens did Winnie have at first?