Class 5 and Class 3 collected old newspapers, and 3 groups collected 42.12 kilograms of old newspapers in 4 days. How many kilograms of old newspapers does each group collect on average per day?
五三班的同学们收集旧报纸，3个小组4天收集旧报纸42.12千克．平均每个小组每天收集旧报纸多少千克？
<gadget id="calculator">42.12 / 4 / 3</gadget>
<output>3.51</output>

<result>3.51</result>