There are 4 teams signing up for a basketball game. Each team has to play one game with other teams. These games are divided into two schools. How many games does each school play on average?
一次篮球赛，有4个队报名参加，每个队都要与其他各队比赛一场，这些比赛分到两所学校的球场上进行，平均每所学校要进行几场比赛？
<gadget id="calculator">3 / 2</gadget>
<output>3/2 = around 1.5</output>

<gadget id="calculator">4 * (3/2)</gadget>
<output>6</output>

<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<result>3</result>