The total length of a cartoon is 387 minutes, and it is broadcast in 3 days, with 3 episodes per day. How long is each episode on average?
一部动画片总长387分钟，分3天播完，每天播3集，平均每集播多长时间？
<gadget id="calculator">3 * 3</gadget>
<output>9</output>

<gadget id="calculator">387 / 9</gadget>
<output>43</output>

<result>43</result>