It is known that the proportion of people who like each program is: 20% for variety shows, 30% for cartoons, 22% for TV dramas, 17% for news, and 11% for others. If there are 40 students who like variety shows, how many sixth graders are there in total?
已知喜欢各个节目的人占的比例为：综艺类20%，动画片30%，电视剧22%，新闻类17%，其他11%．如果喜欢综艺类节目的学生有40人，六年级学生一共有所少人？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">40 / (1/5)</gadget>
<output>200</output>

<result>200</result>