Question
Ivan had 7 more purple stamps than white stamps at first. His father then gave him 13 purple stamps and his classmates gave him 122 white stamps for Christmas. Ivan realised that he now had four times as many white stamps as purple stamps. How many stamps did Ivan have in the end?
4 m

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Ivan had 7 more purple stamps than white stamps at first. His father then gave him 13 purple stamps and his classmates gave him 122 white stamps for Christmas. Ivan realised that he now had four times as many white stamps as purple stamps. How many stamps did Ivan have in the end?