Huaxia TV Factory needs to produce 1,560 color LCD TVs, 960 of which have been completed, and the rest will be completed within 4 days. How many sets are produced on average per day?
华夏电视厂要生产1560台彩色液晶电视机，已经完成了960台，剩下的要在4天内完成，平均每天生产多少台？
<gadget id="calculator">1_560 - 960</gadget>
<output>600</output>

<gadget id="calculator">600 / 4</gadget>
<output>150</output>

<result>150</result>