The school cafeteria has 1,200 kilograms of rice. After 16 days of eating, there are 400 kilograms left. How many kilograms are eaten per day on average?
学校食堂有大米1200千克，吃了16天后，还剩400千克，平均每天吃多少千克？
<gadget id="calculator">1_200 - 400</gadget>
<output>800</output>

<gadget id="calculator">800 / 16</gadget>
<output>50</output>

<result>50</result>