When 20 students went to the Bayue Mountain Scenic Area in Tongliang, they took a group photo together. They charged 10.6 yuan for negatives and sent 3 photos for a 5-inch photo, and 0.8 yuan for each additional photo. If the students participating in the group photo each get one photo, how much should each student pay on average?
有20名学生到铜梁巴岳山风景区时，一起合影留念，拍一张5寸的照片收底片费用10.6元并送3张照片，另外每加洗1张照片收费0.8元．如果参加合影的学生每人各得1张照片，平均每人应付多少钱？
<gadget id="calculator">20 - 3</gadget>
<output>17</output>

<gadget id="calculator">17 * 0.8</gadget>
<output>13.6</output>

<gadget id="calculator">13.6 + 10.6</gadget>
<output>24.2</output>

<gadget id="calculator">24.2 / 20</gadget>
<output>1.21</output>

<result>1.21</result>