The children's toy factory plans to make 9600 2008 Beijing Olympic mascot "Fuwa" in 4 days. Now we need to do 120 more, which also requires 4 days to complete. How many more do you do on average every day than before?
儿童玩具厂计划4天做9600个2008北京奥运吉祥物"福娃"．现在要多做120个，同样要求4天完成．这样平均每天要比原来多做多少个？
<gadget id="calculator">120 / 4</gadget>
<output>30</output>

<result>30</result>