Kindergarten children are divided into three teams to participate in the game. The ratio of the number of people in the first team to the second team is 6:5, and the ratio of the number of people in the second team to the third team is 3:4. It is known that the number of the first team is 17 less than the sum of the number of the second and third teams. How many people participated in the game in kindergarten?
幼儿园的小朋友分三队参加游戏．第一队与第二队人数的比是6：5，第二队与第三队人数的比是3：4，已知第一队的人数比二、三两队人数的总和少17人．幼儿园参加游戏的共有多少人？
<gadget id="calculator">20 - 18</gadget>
<output>2</output>

<gadget id="calculator">15 + 2</gadget>
<output>17</output>

<gadget id="calculator">17 / 17</gadget>
<output>1</output>

<gadget id="calculator">15 + 18 + 20</gadget>
<output>53</output>

<gadget id="calculator">1 * 53</gadget>
<output>53</output>

<result>53</result>