After Uncle Wang brought 600 yuan to buy 15 ducklings in the market, there was still 75 yuan left. How much is each duckling on average?
王叔叔带了600元钱在市场买了15只小鸭后，还剩下75元，平均每只小鸭多少钱？
<gadget id="calculator">600 - 75</gadget>
<output>525</output>

<gadget id="calculator">525 / 15</gadget>
<output>35</output>

<result>35</result>