In the school sports meeting, there are 60 people in the first grade, which is 25% less than the number in the second grade. How many people in the second grade participate in the competition?
学校运动会，一年级参加比赛的人数有60人，比二年级的人数少25%，二年级参加比赛的有多少人？
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">60 / (3/4)</gadget>
<output>80</output>

<result>80</result>