Xiao Zhang and 3 classmates went to the park to play. They spent 108 yuan in total. How much did each person spend on average?
小张和3位同学去公园游玩，他们一共用了108元钱，平均每人用多少钱？
<gadget id="calculator">1 + 3</gadget>
<output>4</output>

<gadget id="calculator">108 / 4</gadget>
<output>27</output>

<result>27</result>