The school planted some potted flowers. If 3 pots are placed in each classroom, 36 classrooms can be placed. How many classrooms can be placed if there are 4 pots in each classroom?
学校栽了一些盆花．如果每个教室放3盆，可以放36个教室．如果每个教室放4盆，可以放多少个教室？
<gadget id="calculator">36 / 4</gadget>
<output>9</output>

<gadget id="calculator">3 * 9</gadget>
<output>27</output>

<result>27</result>