Two cars A and B set off from cities A and B at the same time at 6 o'clock in the morning. At 10 o'clock, the two cars meet for 112.5 kilometers, and continue to drive until 1 o'clock in the afternoon. The distance between the two cars is still 112.5 kilometers. How many kilometers is it?
甲乙两辆汽车早上6时分别从A，B两城同时相向出发，到10时两车相聚112.5千米，继续行进到下午1时，两车还是相距112.5千米，A、B两城的距离是多少千米？
<gadget id="calculator">112.5 * 2</gadget>
<output>225</output>

<gadget id="calculator">13 - 10</gadget>
<output>3</output>

<gadget id="calculator">225 / 3</gadget>
<output>75</output>

<gadget id="calculator">10 - 6</gadget>
<output>4</output>

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

<gadget id="calculator">300 + 112.5</gadget>
<output>412.5</output>

<result>412.5</result>