There are 10 adults and 5 children who ate 300 strawberries, how many strawberries did each person eat on average?
有10个大人，5个小孩吃了300个草莓，平均每人吃了多少个？
<gadget id="calculator">10 + 5</gadget>
<output>15</output>

<gadget id="calculator">300 / 15</gadget>
<output>20</output>

<result>20</result>