A classroom with a length of 15 meters, a width of 8 meters, and a height of 4 meters is used to paint the roof and four walls, and 1.5 kg of paint is used per square meter. The area is 24 square meters except for doors, windows and blackboards. Considering the waste in actual painting, the material is prepared When increasing (1/10) of the required paint, how many kilograms of paint should be prepared to paint the wall?
一间长15米，宽8米，高4米的教室，粉刷其屋顶及四面墙壁，每平方米用涂料1.5千克，除门窗、黑板面积是24平方米，考虑到实际粉刷时有浪费，备料时增加所需涂料的(1/10)，粉刷墙壁要准备多少千克涂料？
<gadget id="calculator">15 * 8</gadget>
<output>120</output>

<gadget id="calculator">15 * 4 * 2</gadget>
<output>120</output>

<gadget id="calculator">8 * 4 * 2</gadget>
<output>64</output>

<gadget id="calculator">64 - 24</gadget>
<output>40</output>

<gadget id="calculator">120 + 120 + 40</gadget>
<output>280</output>

<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 + (1/10)</gadget>
<output>11/10 = around 1.1</output>

<gadget id="calculator">280 * 1.5 * (11/10)</gadget>
<output>462</output>

<result>462</result>