The school needs to pave a piece of grass for greening the campus. On the first day, 120 square meters of turf should be paved, and the remaining 60% should be paved within 2 days. How many square meters of turf should be paved every day on average in these three days?
学校绿化校园要铺一块草地，第一天铺草皮120平方米，剩下的60%要在2天内铺完，这三天平均每天铺草皮多少平方米？
<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 - (3/5)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">120 / (2/5) / 3</gadget>
<output>100</output>

<result>100</result>