There are 30 students in Class 1, Grade 6 of a certain school who have reached the standard in physical education, and the number of students who have reached the standard accounts for 60% of the class, so how many students are there in Class 1, Grade 6?
某学校六年级1班有30名同学体育成绩达标，达标人数占全班人数的60%，那么六年级1班共多少名学生．
<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">30 / (3/5)</gadget>
<output>50</output>

<result>50</result>