Two cars drive oppositely from two places 225 kilometers apart at the same time. After 1.5 hours, they are still separated by 1/3 of the whole distance. It is known that the speed ratio of the two cars is 12:13, and the faster car travels per hour. How many kilometers?
两辆汽车同时从相距225千米的两地相对开出，1.5小时后还相距全程的(1/3)，已知两车的速度比是12：13，较快的一辆车每小时行多少千米？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/3)</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">12 + 13</gadget>
<output>25</output>

<gadget id="calculator">(2/3) / 25</gadget>
<output>2/75 = around 0.026667</output>

<gadget id="calculator">225 * (2/75) * 13</gadget>
<output>78</output>

<gadget id="calculator">78 / 1.5</gadget>
<output>52</output>

<result>52</result>