Students do exercises, 12 people in each row, can stand 80 rows. If there are 16 people standing in each row, how many rows can they stand in? (Solution with proportional knowledge)
同学们做操，每行12人，可以站80行．如果每行站16人，可以站多少行？(用比例知识解)
<gadget id="calculator">12 * 80</gadget>
<output>960</output>

<gadget id="calculator">960 / 16</gadget>
<output>60</output>

<result>60</result>