The total length of a TV series is 600 minutes. It should be finished within 15 days. How long does this TV series run on average per day?
一部电视连续剧的总长度是600分钟．要在15天之内播完．这部电视连续剧平均每天要播出多长时问？
<gadget id="calculator">600 / 15</gadget>
<output>40</output>

<result>40</result>