The 36 students in class 3 and 2 were divided into 4 groups to donate: 138 yuan, 176 yuan, 157 yuan, and 177 yuan. How much does each group donate on average?
三2班的36名同学分成4个小组捐款数分别为：138元、176元、157元、177元．平均每组捐多少元？
<gadget id="calculator">138 + 176 + 157 + 177</gadget>
<output>648</output>

<gadget id="calculator">648 / 4</gadget>
<output>162</output>

<result>162</result>