500 students participated in the English test, and the excellent rate was 85%. How many people are excellent?
500名学生参加英语测试，优秀率为85%，达到优秀的有多少人．
<gadget id="calculator">85 / 100</gadget>
<output>17/20 = around 0.85</output>

<gadget id="calculator">500 * (17/20)</gadget>
<output>425</output>

<result>425</result>