Xiao Ming and three classmates folded a total of 120 origami cranes in 2 days, how many origami cranes per person per day on average?
小明和3个同学2天共折了120只纸鹤，平均每天每人折纸鹤多少只？
<gadget id="calculator">120 / 2 / 4</gadget>
<output>15</output>

<result>15</result>