Question
Daniel gave 17 of his pens to Riordan, 17 of his pens to Caden and 37 of his pens to Cole. He then had 30 pens left. How many pens had he at first?
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Daniel gave 17 of his pens to Riordan, 17 of his pens to Caden and 37 of his pens to Cole. He then had 30 pens left. How many pens had he at first?