A shopping mall shipped 480 color TV sets and sold them for 13 days, leaving 155 sets unsold. How many color TV sets are sold on average every day?
某商场运来480台彩电，卖了13天，还剩155台没有卖出去．平均每天卖出彩电多少台？
<gadget id="calculator">480 - 155</gadget>
<output>325</output>

<gadget id="calculator">325 / 13</gadget>
<output>25</output>

<result>25</result>