The school shipped 200 saplings, the teacher planted 10%, and the rest were distributed to Classes A, B, and C according to the ratio of 7:6:5. How many saplings did Class C get?
学校运来200棵树苗，老师栽种了10%，余下的按7：6：5分配给甲、乙、丙三个班级，丙班分到多少棵？
<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 - (1/10)</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">7 + 6 + 5</gadget>
<output>18</output>

<gadget id="calculator">5 / 18</gadget>
<output>5/18 = around 0.277778</output>

<gadget id="calculator">200 * (9/10) * (5/18)</gadget>
<output>50</output>

<result>50</result>