Mom went to the supermarket to buy 3.5 kilograms of pears, which cost 14 yuan. How much is a kilogram of pears? (column equations to solve problems)
妈妈去超市买了3.5千克梨，共用了14元，每千克梨多少钱？(列方程解决问题)
<gadget id="calculator">14 / 3.5</gadget>
<output>4</output>

<result>4</result>