Question
Warren gave 27 of his pens to Ahmad, 17 of his pens to Rael and 17 of his pens to Pierre. He then had 15 pens left. How many pens had he at first?
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Warren gave 27 of his pens to Ahmad, 17 of his pens to Rael and 17 of his pens to Pierre. He then had 15 pens left. How many pens had he at first?