In order to promote sales, the store stipulates that 5 empty soda bottles can be exchanged for a bottle of soda. In order to save money, a tourist group bought 100 bottles of soda. In the end, each member of the group drank a bottle of soda. How many people are there in the tour group?
为了促销，商店规定5个空汽水瓶可以换一瓶汽水，某旅游团为了节省开支，买了100瓶汽水，最后每个团员都喝到一瓶汽水，这个旅游团有多少人．
<gadget id="calculator">100 + 20 + 4 + 1</gadget>
<output>125</output>

<result>125</result>