Question
Andy had 7 more black pens than pink pens at first. His father then gave him 11 black pens and his schoolmates gave him 138 pink pens for Christmas. Andy realised that he now had five times as many pink pens as black pens. How many pens did Andy have in the end?
4 m

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Andy had 7 more black pens than pink pens at first. His father then gave him 11 black pens and his schoolmates gave him 138 pink pens for Christmas. Andy realised that he now had five times as many pink pens as black pens. How many pens did Andy have in the end?