The environmental protection team of Class 3 and 4 of the Experimental Primary School was divided into two groups to pick up rubbish on Xinhua Street. The first group consisted of 18 people who collected 136 kilograms of rubbish in total. The second group consisted of 22 people who picked up 8 kg of rubbish on average. How many kilograms of rubbish does this environmental protection team pick up on average?
实验小学三4班环保队分两个小组到新华大街捡垃圾，第一小组18人，一共捡垃圾136千克，第二小组22人，平均每人捡垃圾8千克．这个环保队平均每人捡垃圾多少千克？
<gadget id="calculator">22 * 8</gadget>
<output>176</output>

<gadget id="calculator">136 + 176</gadget>
<output>312</output>

<gadget id="calculator">18 + 22</gadget>
<output>40</output>

<gadget id="calculator">312 / 40</gadget>
<output>39/5 = around 7.8</output>

<result>39/5 = around 7.8</result>