The school held a sports meeting, and 60 people participated in the track and field competition, which was 20% more than the number of people participating in the ball game. How many people participate in the ball game?
学校召开运动会，参加田径比赛的有60人，比参见球类比赛的人数多20%．参加球类比赛的有多少人？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">60 / (6/5)</gadget>
<output>50</output>

<result>50</result>