Cars A and B depart from places A and B at the same time, and car A meets car B at a distance of 15 kilometers beyond the midpoint. It is known that the ratio of the distance traveled by car A to the distance traveled by car B is 8:7. How many kilometers are the distance between the two places.
A、B两车同时从甲乙两地出发，A车在超过中点15千米的地方与B车相遇，已知A车所行的路程与B车所行路程的比是8：7，甲乙两地相距多少千米．
<gadget id="calculator">15 * 2</gadget>
<output>30</output>

<gadget id="calculator">8 - 7</gadget>
<output>1</output>

<gadget id="calculator">8 + 7</gadget>
<output>15</output>

<gadget id="calculator">1 / 15</gadget>
<output>1/15 = around 0.066667</output>

<gadget id="calculator">30 / (1/15)</gadget>
<output>450</output>

<result>450</result>