In an oral arithmetic competition, Xiao Lin completed all the test questions in 1.5 minutes, an average of 24 questions per minute, and after another 0.5 minutes, Xiao Jun also completed all the test questions. How many questions does Xiaojun do on average per minute?
在一次口算比赛中，小林用1.5分钟完成了全部试题，平均每分钟做24题，又过了0.5分钟，小军也完成了全部试题．小军平均每分钟做多少道题？
<gadget id="calculator">1.5 + 0.5</gadget>
<output>2</output>

<gadget id="calculator">24 / 2</gadget>
<output>12</output>

<gadget id="calculator">1.5 * 12</gadget>
<output>18</output>

<result>18</result>