car travels 225 kilometers in 3 hours. According to this calculation, the car travels for another 4 hours. How many kilometers in total?
一辆汽车3小时行驶225千米，照这样计算，这辆汽车又行4小时，一共行驶多少千米？
<gadget id="calculator">225 / 3</gadget>
<output>75</output>

<gadget id="calculator">75 * 4</gadget>
<output>300</output>

<gadget id="calculator">300 + 225</gadget>
<output>525</output>

<result>525</result>