The students participated in environmental protection activities. There were 42 people in Class 1, and a total of 3,360 square meters of environment was cleaned up. There were 38 people in Class 2, and a total of 2,800 square meters of environment were cleaned up.
同学们参加环保活动，六一班42人，共清理环境3360平方米，六二班38人，共清理环境2800平方米，两个班平均每人清理环境多少平方米？
<gadget id="calculator">3_360 + 2_800</gadget>
<output>6_160</output>

<gadget id="calculator">42 + 38</gadget>
<output>80</output>

<gadget id="calculator">6_160 / 80</gadget>
<output>77</output>

<result>77</result>