Question
John folded 24 paper guns on the first day. Each day he did 10 more paper guns than the previous day. On the last day, he made 144 guns. How many days did he fold paper guns?
2 m

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John folded 24 paper guns on the first day. Each day he did 10 more paper guns than the previous day. On the last day, he made 144 guns. How many days did he fold paper guns?