The teachers of Chunhui Elementary School lead the students out for spring outings, 15% of the teachers participated in the spring outing, and the rest were students. Among the students, the ratio of the number of boys to girls is 9:8, and there are 160 girls. So, how many teachers and students are there in the spring outing?
春晖小学的老师们带领学生外出春游，参加春游的老师占15%，其余的是学生．在学生中男、女生人数的比是9：8，女生有160人．那么，外出春游的师生一共有多少人？
<gadget id="calculator">160 / 8</gadget>
<output>20</output>

<gadget id="calculator">20 * 9</gadget>
<output>180</output>

<gadget id="calculator">180 + 160</gadget>
<output>340</output>

<gadget id="calculator">15 / 100</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">1 - (3/20)</gadget>
<output>17/20 = around 0.85</output>

<gadget id="calculator">340 / (17/20)</gadget>
<output>400</output>

<result>400</result>