The school allocates dormitories. If there are 6 people in each room, there are still 20 people without beds, and if there are 8 people in each room, it is just full. How many bedrooms are there in the student dormitory?
学校分配寝室．如果每间住6人，还有20人没有床位，如果每间住8人，正好住满．学生宿舍有多少间寝室？
<gadget id="calculator">8 - 6</gadget>
<output>2</output>

<gadget id="calculator">20 / 2</gadget>
<output>10</output>

<result>10</result>