Aunt Zhang sprayed 1,200 apple trees from 6:00 to 12:00. How many plants are sprayed per hour on average?
张阿姨从6时到12时，一共给1200棵苹果树喷药水．平均每小时喷多少棵？
<gadget id="calculator">12 - 6</gadget>
<output>6</output>

<gadget id="calculator">1_200 / 6</gadget>
<output>200</output>

<result>200</result>