A large truck travels 255 kilometers in 5 hours. According to this calculation, how many kilometers can it travel in total for 3 hours?
一辆大卡车5小时行了255千米，照这样计算，再行3小时，一共可以行多少千米？
<gadget id="calculator">255 / 5</gadget>
<output>51</output>

<gadget id="calculator">3 + 5</gadget>
<output>8</output>

<gadget id="calculator">51 * 8</gadget>
<output>408</output>

<result>408</result>