The school transported 400 saplings. After the teacher planted 10%, the rest were distributed to Classes A, B and C according to the ratio of 5:4:3. How many saplings did Class B get?
学校运来400棵树苗，老师栽种了10%后，余下的按5：4：3分给甲、乙和丙三个班，乙班分到了多少棵树苗？
<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">5 + 4 + 3</gadget>
<output>12</output>

<gadget id="calculator">4 / 12</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">400 * (9/10) * (1/3)</gadget>
<output>120</output>

<result>120</result>