Salted duck and salted duck are famous traditional foods in Jiangsu. Grandpa Chen and Grandpa Li went to Nanjing for a trip. Grandpa Chen bought 6 kg of salted duck for 132 yuan, and grandpa Li bought 5 kg of salted duck for 195 yuan. Which is more expensive, salted duck or salted duck? How much is it expensive?
盐水鸭和板鸭是江苏著名的传统特色食品，陈爷爷和李爷爷去南京旅游，陈爷爷买6千克盐水鸭花了132元，李爷爷买5千克板鸭花了195元．盐水鸭和板鸭哪个贵？贵多少元？
<gadget id="calculator">195 / 5</gadget>
<output>39</output>

<gadget id="calculator">132 / 6</gadget>
<output>22</output>

<gadget id="calculator">39 - 22</gadget>
<output>17</output>

<result>17</result>