The school held a broadcasting competition. The third grade students stand 18 people in each row, and can stand in 16 rows; if there are 8 people in each row, how many rows do they need to stand?
学校举办广播操比赛．三年级同学每行站18人，可以站16行；如果每行站8人，需要站多少行？
<gadget id="calculator">16 / 8</gadget>
<output>2</output>

<gadget id="calculator">18 * 2</gadget>
<output>36</output>

<result>36</result>