Dongdong bought 3 pens and 9 pencils. How many times does Dongdong buy more pencils than pens?
东东买了3支钢笔和9支铅笔．东东买的铅笔的数目是钢笔的多少倍？
<gadget id="calculator">9 / 3</gadget>
<output>3</output>

<result>3</result>