Question
Owen gave 111 of his pens to Vaidev, 311 of his pens to Caden and 111 of his pens to Ivan. He then had 30 pens left. How many pens had he at first?
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Owen gave 111 of his pens to Vaidev, 311 of his pens to Caden and 111 of his pens to Ivan. He then had 30 pens left. How many pens had he at first?